If an automobile manufacturer of a certain model of car wants to estimate the mileage this model car gets in highway driving. The manufacturer needs to sample at least 39 cars.
How to find the sample?We can use the formula for the margin of error in a confidence interval for a mean:
Margin of Error = z* (σ/√n)
Where:
z* is the critical value of the standard normal distribution for the desired level of confidence, which is 90% in this case.
σ is the known population standard deviation, which is 5.7 mpg.
n is the sample size we want to determine.
We want the margin of error to be 1.5 mpg, so we can set up the equation:
1.5 = 1.645 * (5.7 / √n)
where 1.645 is the z-score for 90% confidence level.
Simplifying this equation, we get:
√n = 1.645 * (5.7 / 1.5)
√n = 6.251
Squaring both sides, we get:
n = 39.07
Rounding up to the nearest integer, we get:
n = 39
Therefore, the manufacturer needs to sample at least 39 cars to estimate the highway mileage with a 90% confidence interval and a margin of error of 1.5 mpg.
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A block of wood has a mass of 120g and a volume of 200cm3. What is the density of the wood?
Answer:
The density of the wood is 0.6 g/cm^3
Step-by-step explanation:
The density of an object can be calculated by dividing the mass of the object by its volume. In this case, the mass of the block of wood is 120g and its volume is 200cm^3.
Density = mass / volume
Density = 120g / 200cm^3
Density = 0.6 g/cm^3
Therefore, the density of the wood is 0.6 g/cm^3.
Write the equation of a circle whose diameter has endpoint (-3,0) and (3,0).
The equation of the circle is with the diameter given is x² + y² = 9.
What is equation of a circle?The standard form of the equation of a circle is (x - h)² + (y - k)² = r², where (h,k) is the center of the circle.
We can quickly determine the circle's centre and radius thanks to this form. We must first square the x and y terms before rearranging the components in order to transform a circular equation into standard form.
The endpoints of the diameter is (-3,0) and (3,0).
Now, using the section formula the coordinates of radius are:
((-3+3)/2, (0+0)/2) = (0,0
The standard form of the equation of a circle is (x - h)² + (y - k)² = r², where (h,k) is the center of the circle.
Substituting the values:
(x - 0)² + (y - 0)² = 3²
Hence, the equation of the circle is x² + y² = 9.
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Gary, Nancy, and Jamal are trying to write an inequality where all values in the set of numbers below make the inequality true. {0, 1, 3, 4, 6, 12} Consider their inequalities. Gary: 6>0.5t Nancy: 30−t≤18 Jamal: 12≤t+12 Which student(s) wrote an inequality that is true for all values in the set of numbers? Select your answer from the drop-down list.
Therefore , the solution of the given problem of inequality comes out to be Gary and Jamal are the students who created an inequality that holds true for all values in the collection "0, 1, 3, 4, 6, 12".
An inequality is what?Algebra does not have an equal symbol, but a partner or group of integers can be used to represent the difference. Equilibrium is typically followed by equity. Inequality comes from the continued divergence of ideals. Disparity and expression fairness are not identical. Despite the fact that the parts are typically not connected or close to one another, that was our most popular symbol. (). Any difference, no matter how small, can be used to determine worth.
Here,
We can test each inequality with each value in the set, 0 through 1, 3, 4, 6, and 12, to identify which inequality holds true for all values.
6 > 0.5t, where t is a member of the collection, is Gary's inequality. When we compare each value in the collection to this inequality, we discover:
When t = 6: 6 > 0.5(6) is true
When t = 12: 6 > 0.5(12) is true
Therefore, for each value in the collection, Gary's inequality holds true.
30 - t 18 is Nancy's inequality, where t is a number from the collection. When we compare each value in the collection to this inequality, we discover:
When t = 6: 30 - 6 ≤ 18 is true
When t = 12: 30 - 12 ≤ 18 is true
Therefore, not all values in the collection satisfy Nancy's inequality.
Gary and Jamal are the students who created an inequality that holds true for all values in the collection "0, 1, 3, 4, 6, 12".
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I NEED HELP ASAP PLEASE use the number line to help solve the question
Between 4 and 4.5
sqrt(20)
Between 4.5 and 5
sqrt(22)
sqrt(23.1)
Between 5 and 5.5
sqrt(30)
sqrt(25.9)
sqrt(27.3)
Between 5.5 and 6
sqrt(31)
sqrt(34.9)
1. A rain barrel collects water off the roof of a house during three hours of heavy rainfall. The height of the water in the barrel increases at the rate of r(t) = 47-15 feet per hour, where is the time in hours since the rain began. At time t = 1 hour, the height of the water is 0. 75 foot. What is the height of the water in the barrel at time = 2 hours? (A) 1. 361 ft (B) 1. 500 ft (C) 1. 672 (D) 2. 111
As per integration, the height of the water in the barrel at time = 2 hours is 1.672 feet (option C).
The formula is r(t) = 47-15, where t is the time in hours since the rain began. This formula tells us how fast the water level is changing at any given time t.
In this case, we're asked to find the height of the water in the barrel at t = 2 hours, given that the height at t = 1 hour is 0.75 feet. To solve this problem, we'll integrate the rate formula from t = 1 to t = 2, and add the starting height of 0.75 feet.
∫(47-15)dt from t=1 to t=2 = [47t-15t] from t=1 to t=2 = 0.922
So the total increase in height from t=1 to t=2 is 0.922 feet. Adding this to the starting height of 0.75 feet, we get the height of the water at t=2:
0.75 + 0.922 = 1.672 feet
Therefore, the correct option is (C).
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in an arithmetic sequence, the sum of the second and eighth terms is $5$, and the product of the fourth and fifth terms is also $5$. what is the sum of the first $20$ terms of this sequence?
The sum of the first $20$ terms of the arithmetic sequence is $420$.
In an arithmetic sequence, the sum of the second and eighth terms is $5$, and the product of the fourth and fifth terms is also $5$. The sum of the first $20$ terms of this sequence can be calculated using the following formula:
Sum of the first $20$ terms = $20$/2($a_1 + a_{20})$, where $a_1$ is the first term of the sequence and $a_{20}$ is the twentieth term of the sequence.
Therefore, we need to find the first term of the sequence and the twentieth term of the sequence. To find the first term, we use the following equation:
$5 = a_2 + a_8$, where $a_2$ is the second term and $a_8$ is the eighth term.
To find the twentieth term, we use the following equation:
$5 = a_4 \times a_5$, where $a_4$ is the fourth term and $a_5$ is the fifth term.
Solving both equations, we get $a_2 = 1$ and $a_{20} = 40$. Then, we can calculate the sum of the first $20$ terms of the sequence:
Sum of the first $20$ terms = $20$/2($1 + 40$) = $420$.
Therefore, the sum of the first $20$ terms of the arithmetic sequence is $420$.
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a dependent variable that maintains constant measurements throughout an experiment will be depicted by a
A dependent variable that maintains constant measurements throughout an experiment will be depicted by a straight, horizontal line in a graph.
In an experiment, the dependent variable is the variable being measured, and it is expected to change in response to changes in the independent variable. However, if the dependent variable remains constant throughout the experiment, it indicates that it is not affected by the independent variable.
When such a situation arises, the data points for the dependent variable will be located at the same level or value, resulting in a horizontal line in the graph.
This straight, horizontal line represents the constant measurements of the dependent variable, and it can provide valuable insights into the nature of the relationship between the independent variable and the dependent variable.
A dependent variable that maintains constant measurements throughout an experiment may indicate a flaw in the experimental design, such as an incorrect assumption about the nature of the relationship between the independent variable and the dependent variable, or an uncontrolled confounding variable.
Therefore, it is important to carefully analyze the data and the experimental design to identify and address any potential issues.
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i need help with my home work
The expression or equation that correctly represents the situation given is y = 2x.
What is the relationship between the packages of cashews and the cans of peanuts?Based on the table, for each package of cashews 2 cans of peanuts are required. Here are some examples:
3 packages of cashews = 6 cans of peanuts = 6/3 = 24 packages of cashews = 8 cans of peanuts = 8/4 = 2Based on this relationship and assuming y represents the cans of peanuts and x represents the packages of cashews a possible equation to represent this situation would be y = 2x.
Note: This question is incomplete; below I attach the missing information:
Write an equation to represent this relationship:
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you are ordering a hamburger and can get up to 6 toppings, but each topping can only be used once. you tell the cashier to surprise you with the toppings you get. what is the probability that you get 0 toppings? express your answer as a fraction or a decimal number rounded to four decimal places.
The probability of getting 0 toppings when ordering a hamburger with a choice of up to 6 toppings is 0.0154, rounded to four decimal places.
The total number of ways to choose 6 toppings out of a possible 6 is given by the combination formula:
[tex]$${ \choose 6} = \frac{6!}{6!(6-6)!} = 1$$[/tex]
This is the total number of possible outcomes.
To get 0 toppings, we need to choose 0 toppings out of 6. The number of ways to do this is:
[tex]{6_{0} =[/tex] [tex]\frac{6!}{0!(6-0)!} = 1$$[/tex]
So the probability of getting 0 toppings is:
[tex]$$P(\text{0 toppings}) =[/tex] [tex]\frac{number of ways to get 0 toppings}{total number of possible outcomes} $$[/tex] [tex]\frac{1}{1} = 1$$[/tex]
However, this is assuming that the cashier chooses the toppings randomly and without replacement. If the cashier has some bias or preference towards certain toppings, this probability may be different.
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30 points please help me I've been struggling for so long :(
Which line has a Slope of 3/4
Which line has an undefined Slope
Answer:
slope of 3/4 = line C
undefined slope = line A
Step-by-step explanation:
remember that slope is [tex]\frac{rise}{run}[/tex]. Pick any two points on the graph and count up and over to find the rise/run.
OR
use the slope formula [tex]m=\frac{y_{2} -y_{1} }{x_{2}-x_{1} }[/tex] to plug the two points into and find the slope.
- vertical lines are always undefined.
- horizontal lines have a slope of 0
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Complete the following proof.
Given: mXOY = m WOV
m -- YZ = m --ZW
Prove: m -- XZ = m -- ZV
Since mXOY = mWOV, we can form the following equations so, m--XZ = m--ZV.
What is equation?An equation is a mathematical statement that states the equality of two expressions. It usually consists of two terms, with an equals sign between them, representing the relationship between the terms. Equations are often used to describe relationships between variables, such as in physics and chemistry, and can be used to calculate unknown values.
Proof:
Since mXOY = mWOV, we can form the following equations:
m--YZ = m--ZW (Given)
Subtract both sides of the equation by m to get:
YZ = ZW
Then, multiply both sides of the equation by X to get:
XZ = XW
Now, substitute Y for V and W for V in the equation to get:
XZ = ZV
Finally, subtract both sides of the equation by m to get:
m--XZ = m--ZV
Therefore, m--XZ = m--ZV.
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Michelle has $80 to buy a new outfit. She found a skirt for $20, a blouse for $25, and a belt for $8. How much does she have left to buy shoes?
Evelyn buys bracelets thats cost $6 each and three purses that cost $12 each. The cost of evelyns total purchase is $60. Write and equation thar can be used to find n, the number of bracelets that evelyn buys
b + 2p = 10 ,we have an equation that relates the number of bracelets to the number of purses and the total cost of the purchase. if Evelyn buys two purses, she also buys six bracelets.
Let's start by defining our variables. We'll let "b" represent the number of bracelets that Evelyn buys and "p" represent the number of purses she buys.
We know that each bracelet costs $6 and each purse costs $12. We also know that her total purchase is $60.
Using this information, we can create an equation:
6b + 12p = 60
Now we want to solve for "b", which represents the number of bracelets. To do this, we need to isolate "b" on one side of the equation. We can start by simplifying the equation by dividing both sides by 6:
b + 2p = 10
Now we have an equation that relates the number of bracelets to the number of purses and the total cost of the purchase. We can use this equation to find the value of "b" given any value of "p". For example, if Evelyn buys two purses, we can substitute "p = 2" into the equation and solve for "b":
b + 2(2) = 10
b + 4 = 10
b = 6
So if Evelyn buys two purses, she also buys six bracelets.
In general, we can see that the equation tells us that for every two purses that Evelyn buys, she buys one less bracelet. This makes sense because purses are more expensive than bracelets, so as she buys more purses, she can afford fewer bracelets.
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there is a chance of rain on saturday and a chance of rain on sunday. however, it is twice as likely to rain on sunday if it rains on saturday than if it does not rain on saturday. the probability that it rains at least one day this weekend is , where and are relatively prime positive integers. find .
The probability that it rains at least one day this weekend is [tex]$\frac{a}{b}$[/tex], so the value of a+b is given as 107.
Calculating the likelihood of experiments happening is one of the branches of mathematics known as probability. We can determine everything from the likelihood of receiving heads or tails when tossing a coin to the likelihood of making a research blunder, for instance, using a probability.
Let x be the probability that it rains on Sunday given that it doesn't rain on Saturday then we have,
3/5x + 2/5(2x) = 3/10
7/5x = 3/10
x = 3/14.
Therefore, the probability that it doesn't rain on either day is,
[tex]$\left(1-\dfrac{3}{14}\right)\left(\dfrac{3}{5}\right)=\dfrac{33}{70}$[/tex]
Therefore, the probability that rains on at least one of the days is
[tex]$1-\dfrac{33}{70}=\dfrac{37}{70}$[/tex],
so adding up the 2 numbers, we have,
37 + 70 = 107.
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Complete question;
There is a 40% chance of rain on Saturday and a 30% chance of rain on Sunday. However, it is twice as likely to rain on Sunday if it rains on Saturday than if it does not rain on Saturday. The probability that it rains at least one day this weekend is [tex]$\frac{a}{b}$[/tex], where a and b are relatively prime positive integers. Find a+b.
What is 3x+7y=11 equal to
(6,-1)
(1,-2)
(0,4)
The given equation 3x + 7y = 11 is equal to (1,-2).
The given equation is 3x + 7y = 11.
To find the solution of the equation, we need to consider the given options:
(6,-1)(1,-2)(0,4)
Now substitute each value of x and y in the given equation, we get,
If x = 6 and y = -13(3 × 6) + (7 × -1) = 18 - 7 = 11 ≠ 11
If x = 1 and y = -2(3 × 1) + (7 × -2) = 3 - 14 = -11 ≠ 11
If x = 0 and y = 4(3 × 0) + (7 × 4) = 0 + 28 = 28 ≠ 11
Therefore, the given equation 3x + 7y = 11 is equal to (1,-2).
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mental ability
hardest queston for grade 7
you are god if you did and explained properly
i will mark you as brainliest
optinons are-:
173
153
182
142
Answer:
153
Step-by-step explanation:
The relationship in the row is below
4³ +2³ +1³ =64 + 8 +1 = 72
1³ + 2³ +6³= 1 + 8 + 216
3³ + 1³ + 5³ = 27 +1 +125 = 153
All numbers below the first level are raised to power 3 and added together
Help pleasee it’s urgent
Equation:
89.50=2.35c+5.50d
If theres 22 dogs and cats in total you can plug in number less than 22 for c(# of cats) and d(# of dogs).
So we try pats numbers 8 cats and 14 dogs so
89.50=2.35(8)+5.50(14)
89.50=18.8+77
89.50=95.8
So pats numbers were wrong so we try different numbers
So i started pluging in numbers from under 22 so i got c is 10 and d is 12 lets try it with the equation
89.50=2.35(10)+5.50(12)
89.50=23.5+66
89.50=89.50 so it works the answer to how many number of dogs and cats is 12 dogs and 10 cats
Sophie has a small cube-shaped box. Its volume is 64 cubic centimeters.
What is the area of one face of the box?
Answer:
The answer to your problem is, [tex]16cm^{2}[/tex]
Step-by-step explanation:
Sophie has a small cube shaped box.
Volume of the box is [tex]64cm^{3}[/tex]
We have to find the area of one face of the box.
Let one side of the box is x
Then volume = [tex]x^{3}[/tex] = 64
x³ = 4³
= 4
Now area of one face of the cube = x²
then area = 4² = 16 cm²
Thus the answer to your problem is, [tex]16cm^{2}[/tex]
10 more than the product of 2 and a number value
Answer:
10 + 2x
also,
2x + 10
Step-by-step explanation:
"a number value" is the unknown, so use a variable (letter) I used x, but could be almost any letter (avoid e and i, they have other math meanings)
"10 more than" means to add on 10. You can do that up front or at the end. Order is way more important for subtracting, so no worries here.
"product" means multiplying. So the "product of 2 and a number" is 2x.
So to translate this word phrase into an algebraic expression, you get:
10 + 2x
but also 2x + 10 is the same thing.
the management of f xyzfinity cable estimates that the number of new subscribers (in thousands) next year in charlottesville is described by the random variable x and the number of new subscribers (in thousands) in albemarle county outside of charlottesville is described by the random variable y. if the joint probability density function is f(x,y)
To estimate the number of new subscribers in Charlottesville and Albemarle County, we'll use the given joint probability density function (pdf) f(x,y).
Here's a step-by-step explanation:
1. Identify the random variables: In this case, X represents the number of new subscribers (in thousands) in Charlottesville, and Y represents the number of new subscribers (in thousands) in Albemarle County outside of Charlottesville.
2. Understand the joint probability density function (pdf): The function f(x,y) describes the probability of having a specific number of new subscribers in both areas. The joint pdf is used to find the probability of a particular combination of X and Y values.
3. Determine the desired outcome: In this case, you want to estimate the number of new subscribers in both Charlottesville (X) and Albemarle County (Y) next year.
4. Calculate the probabilities: To find the probability of a specific combination of X and Y values, you'll need to evaluate the joint pdf f(x,y) at those values.
5. Analyze the results: Based on the probabilities you've calculated using the joint pdf, you can make informed estimates about the number of new subscribers in both areas next year.
By following these steps and using the joint probability density function f(x,y), you can estimate the number of new subscribers for F XYZ finity Cable in Charlottesville and Albemarle County next year.
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Factor 72 + 32. Write your answer in the form a ( b + c) where a is the gcf of 72 and 32
Factor 72 + 32 in the form of a ( b + c) with A having gcf is 72 + 32 is 8(9 + 4).
To factor 72 + 32, we first need to find the greatest common factor (GCF) of 72 and 32.
The prime factorization of 72 is 2³ x 3², and the prime factorization of 32 is 2⁵.
The common factors of 72 and 32 are 1, 2, 4, 8, and 16. The greatest common factor is 8, since it is the largest factor that they both share.
So, we can write 72 + 32 as:
72 + 32 = 8 x (9 + 4)
Therefore, the factored form of 72 + 32 is 8(9 + 4).
To factor 72 + 32, we need to find the greatest common factor (GCF) of 72 and 32, which is 8. We can then use this GCF to write 72 + 32 in factored form as 8(9 + 4). This expression can also be simplified as 8(13), which equals 104. This means that 72 + 32 can be written as the product of 8 and 13, where 8 is the GCF of 72 and 32, and 13 is the sum of the quotients of 72 and 32 when divided by 8. Factoring expressions is an important skill in algebra and is used in many areas of mathematics and science.
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what is the term for 2x + 4y - 2
Answer:
The term 2x+4y-2 is a binomial equation.
Step-by-step explanation:
Factoring said equation: 2(x+2y-1)
x intercepts: (1,0)
y intercepts: (0, 1/2)
Help me please i’m timed!
The value of angle x in the right triangle KJI is approximately 63.4 degrees.
What is trigonometric ratios ?
Trigonometric ratios are mathematical functions that relate the angles of a right triangle to the lengths of its sides. The three primary trigonometric ratios are sine, cosine, and tangent, which are abbreviated as sin, cos, and tan, respectively.
These ratios are defined as follows:
Sine (sin) of an angle is the ratio of the length of the side opposite to the angle to the length of the hypotenuse.
Cosine (cos) of an angle is the ratio of the length of the adjacent side to the angle to the length of the hypotenuse.
Tangent (tan) of an angle is the ratio of the length of the side opposite to the angle to the length of the adjacent side.
Finding the value of x :
We can use the trigonometric ratios to find the value of angle x in the right triangle KJI.
First, we can use the Pythagorean theorem to find the length of the hypotenuse KI:
[tex]KI^2 = KJ^2 + JI^2[/tex]
[tex]KI^2 = 27^2 + 48^2[/tex]
[tex]KI^2 = 729 + 2304[/tex]
[tex]KI^2 = 3033[/tex]
[tex]KI =\sqrt{3033}[/tex]
Next, we can use the sine function to find the value of angle I:
[tex]sin(I) = JI / KI[/tex]
[tex]sin(I) = 48 / \sqrt{3033}[/tex]
[tex]I = sin^-1(48 / \sqrt{3033})[/tex]
[tex]I = 63.4[/tex] degrees
Therefore, the value of angle x in the right triangle KJI is approximately 63.4 degrees.
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find the area of the composite figure
Answer:
area=36.5
Step-by-step explanation:
8×4=32
8-5=3 for the base of the triangle
7-4=3 for the height of the triangle
3×3=9
9÷2=4.5
4.5+32=36.5
area=36.5
H + i3 where i = 1 and h = 19 caculate please
Answer: 22
Step-by-step explanation:
Substitude 1 for i and 19 for H.
19+1(3) = 19+3 = 22
Solve for x (please help me with this I’m willing to give 20 points)
Answer:
75°
Step-by-step explanation:
The angle in the given figure is 90°.
x + 15 = 90
x = 90 - 15
x = 75°
No notes. No Book. No Phone. No Ipad
Calculator allowed. Homework allowed
Quiz 6.1
1) Which expression is equivalent to 83
√834
5
√835
a.
b.
4
c. (√83) 5
d. (√83)*
2) Which expression is equivalent to V30'
a. 307
7
b. 305
c. 304
d. 3021
6) Write (b) as a radical expression.
Simplify completely.
Name:
Block:
3) Write x¹/5 in radical form.
Date:
Guinn
4) Write √45 in rational exponent form.
5) What is the value of n if va = a"?
7) Write √-64x as a rational exponent.
Simplify completely.
Part B:
How many times faster (round to the nearest tenth)?
8) The power function H(m) = 240m models an animal's approximate resting heard rate H
(in beats per minute) given its mass m (in kilograms). Consider a gorilla with a mass of 200
kilograms and a chimpanzee with a mass of 50 kilograms.
Part A:
Which animal has a faster heart rate when resting (Show all work)?
The gorilla has a heart rate that is four times faster than the chimpanzee's when they are resting.
What is expression in math?Expression in math is a combination of numbers, variables, operations and/or symbols that represent a value, quantity or an equation. It can either be a single term, or several terms connected by mathematical operations such as addition, subtraction, multiplication and division. Expressions are typically used in equations, formulas and problems to help solve them.
To calculate the heart rate of the gorilla, we use the power function given: H(m) = 240m. Substituting in m = 200, we get H(200) = 240(200) = 48,000 beats per minute.
To calculate the heart rate of the chimpanzee, we use the same power function: H(m) = 240m. Substituting in m = 50, we get H(50) = 240(50) = 12,000 beats per minute.
Therefore, the gorilla has a heart rate that is four times faster than the chimpanzees when they are resting.
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Can someone please help me on this?
Answer:
For problem a: 0,4 0,5 0,6
For Problem B: 1,0 2,0 3,0
Step-by-step explanation:
Graph each equation on a graph Figure out either solid or dotted line. Then depending on <=,<,>,>= is whre you shade on your graph. The spot where both lines meet when shaded is your solution area and you pick any spot on that. You can check your answer by plugging in ordered pairs for your X,Y values in the system.
3 Which of the following figures have
the same area?
2.9 cm
II
4 cm
2 cm
A. Figures I and II
C. Figures I and III
I
5.8 cm
III 3.7 cm
3.7 cm
B. Figure II and III
D. None of the above
We can see here that the figures that have the same area are: A. Figures I and II.
What is area?Area is a measure of the size of a two-dimensional surface or shape. It refers to the amount of space inside the boundaries of a flat object, such as a rectangle, triangle, or circle. Area is typically measured in square units, such as square meters, square feet, or square centimeters.
The area of Figure I which is a rectangle is = l × b = 2cm × 5.8cm = 11.6cm².
The area of Figure II which is a parallelogram is = b × h = 4cm × 2.9cm = 11.6cm².
Thus, Figures I and II have the same area.
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What is the percentage change of the number of customers that visited the store in the first week to the number of customers that visited the store in the second week?
The percentage change in the visit of total number of customers in the second week as compare to first week is equal to 16.67%.
Total number of customers visited the store in the first week = 360
Total number of customers visited the store in the second week = 300
Percentage Change = (|First week - second week / First week) x 100%
Substitute the value of the number of customers in different weeks in the formula we get,
Percentage Change
= (|300 - 360| / 360) x 100
= (60 / 360) x 100
=( 100 / 6 )
= 16.66666%
= 16.67%
Therefore, the percentage change in the number of customers that visited the store from the first week to the second week is a decrease of 16.67%.
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The above question is incomplete, the complete question is:
Mr. Davies opened a new retail store. During the first week, 360 customers visited the store. During the second week, 300 customers visited the store.
What is the percentage change of the number of customers that visited the store in the first week to the number of customers that visited the store in the second week?