Answer:
-13
Step-by-step explanation:
To add fractions, find the lowest common denominator and then combine
help me please fr i just need these questions
a) The base area of the cylinder is given as follows: 78.54 ft².
b) The height of the cylinder is given as follows: 2 ft.
How to obtain the volume of the cylinder?The volume of a cylinder of radius r and height h is given by the equation presented as follows:
V = πr²h.
The base area is given as follows:
Ab = πr².
Considering the radius of 5 ft, the base area is of:
Ab = 3.1416 x 5²
Ab = 78.54 ft².
Considering the volume of 157.08 ft³, the height of the cylinder is obtained as follows:
78.54h = 157.08
h = 157.08/78.54
h = 2 ft.
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Hurry up (time limit )
State the domain and range and tell if the graph is a function yes or no?
What’s the domain and range?
In this problem, we have that the graph in fact represents a function, as there are no vertically aligned points, that is, each input is mapped to a single output.
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Factor each polynomial function. Based on these factors, which polynomial’s graph crosses the x-axis at only one point? A. f ( x ) = x 3 − 7 x 2 + 3 x − 21 B. f ( x ) = x 3 − 3 x 2 − 4 x + 12 C. f ( x ) = x 3 + 2 x 2 − 9 x − 18 D. f ( x ) = x 3 − 2 x 2 − 16 x + 32
Based on these factors, the polynomial that graph crosses the x-axis at only one point is A. f ( x ) = x ³ − 7 x² + 3 x − 21
What is a polynomial?A polynomial in mathematics is a mathematical statement made up of variables (also known as indeterminates) and coefficients that only include the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables.
Polynomials are a fundamental algebra topic that is used in many areas of mathematics. A polynomial's degree is the largest exponent of the variable x in the expression. The correct option is A.
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Solve the equation and check your solution. 5 t = 7 and one-half Multiply 5t by 5; the answer is 7 and one-half. Divide 5t by 5; the answer is 7 and one-half. Divide both sides by 5; the answer is 1 and one-half. Multiply both sides by 5; the answer is 37 and one-half.
Answer: the answer is 13 and one-half
Step-by-step explanation:
C
Step-by-step explanation:
if u were to flip a coin 15 times how many times will the coin land on tails
dude what is this i dont understand
Answer:
g(1) = 1
Step-by-step explanation:
the absolute value function always gives a positive result, that is
| - a | = | a | = a
to evaluate g(1) substitute x = 1 into g(x)
g(1) = - 3| 1 - 2| + 4
= - 3| - 1| + 4
= - 3(1) + 4
= - 3 + 4
= 1
Happy Motor® is a company producing specialty vehicles. The company operates
several departments and each of the department is responsible for building a particular
type of vehicles, including large transport trucks, mini-bus, race car, motorcycle... etc.
Happy Motor® wants to create a database to keep track the orders to improve the
purchase and deliver process.
Each vehicle requires at least one or more different specific components, and each
department makes order to buy the components from the vendors. The vendors may
provide more than one type of the components.
All the orders are handled by the purchasing department. Each order may contain of
several different components, but all components should be come from the same vendor.
The quantity for each component requested may be different If the components needed
by the department are come from different vendors, the department need to place one
order per vendor. Each component is provided by a specified vendor.
To provide the frequently requested components immediately, an inventory is
maintained. That means the quantity on hand (QOH) for each component is recorded.
When an order comes in, it is checked to determine whether the requested component
is in inventory. If a component is not in inventory, it must be ordered from a vendor.
For each department, department code, name and email are recorded. For each order,
order number, date and total amount are recorded. For each component, component
code, name and price are recorded. Some components may not have been ordered by
any departments yet. For each vendor, vendor code, name and email are recorded. Some
vendors are newly introduced and has no order or component provided.
Given that functional description of the processes encountered at Happy Motor®
purchasing department, create the appropriate fully attributed Crow's Foot ERD.
I am not able to create visual content such as an ERD diagram, but I can guide you through the process of creating an ERD for Happy Motor's purchasing department based on the functional description provided.
First, let's identify the entities in the description:
Department (with attributes: department code, name, email)
Vehicle Type (which is produced by each department)
Component (with attributes: component code, name, price)
Vendor (with attributes: vendor code, name, email)
Order (with attributes: order number, date, total amount)
Next, let's identify the relationships between the entities:
Each department produces one or more types of vehicles
Each vehicle type requires at least one or more different specific components
Each department makes orders to buy components from vendors
Each vendor provides one or more types of components
Each order contains several different components, but all components should be from the same vendor
Each component is provided by a specified vendor
An inventory is maintained to keep track of the quantity on hand (QOH) for each component
Based on these relationships, we can create an ERD with the following entities and relationships:
Department (department code, name, email) with a one-to-many relationship with Vehicle Type
Vehicle Type (vehicle type code, name) with a many-to-many relationship with Component
Component (component code, name, price) with a many-to-one relationship with Vendor
Vendor (vendor code, name, email) with a one-to-many relationship with Component and Order
Order (order number, date, total amount) with a many-to-many relationship with Component
To show the inventory relationship, we can add an attribute to the Component entity for QOH.
Note that this is just a general outline of the ERD, and there may be additional details that need to be considered based on the specific requirements of Happy Motor's purchasing department.
To represent the inventory maintained for each component, the Component entity would have an attribute for quantity on hand (QOH).The ERD for Happy Motor® purchasing department would have the following entities and relationships:
Entities:
1. Department - with attributes: department code (PK), name, email
2. Vehicle Type - with attributes: type code (PK), name
3. Component - with attributes: component code (PK), name, price
4. Vendor - with attributes: vendor code (PK), name, email
5. Order - with attributes: order number (PK), date, total amount
Relationships:
1. Department orders Component - one-to-many (1:N) relationship between Department and Component
2. Component belongs to Vehicle Type - many-to-one (N:1) relationship between Component and Vehicle Type
3. Component is provided by Vendor - many-to-one (N:1) relationship between Component and Vendor
4. Order contains Component - many-to-many (M:N) relationship between Order and Component
5. Order is placed by Department - many-to-one (N:1) relationship between Order and Department
6. Order is placed with Vendor - many-to-one (N:1) relationship between Order and Vendor
Additionally, to represent the inventory maintained for each component, the Component entity would have an attribute for quantity on hand (QOH).
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can you please help me with the answer?
The dimension is gioven as 69.26 feet
How to solve for the dimensionxy = 1836
This is the area
The cost of fence = 2x + 2y
cost of interior fencing
2x + 4y
C = 20.40(C1) + 12.00(C2)
We have to put the vakues in the formula above
C = 20.40(2x + 2y) + 12.00(2x + 4y)
= 40.80x + 40.80y + 24.00x + 48.00y
= 64.80x + 88.80y
from xy = 1836
y = 1836 / x
We have to put the value in C
C = 64.80x + 88.80(1836/x)
= 64.80x + 164236.80/x
Take the deriveative with respect to x
64.80 - 164236.80/x^2 = 0
x = √(164236.80/64.80)
= 69.26 feet
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Find the magnitude and direction angle for each vector. Give the measure of the direction angle as an angle in [0,360]
Answer:
(b) 10; 150°
Step-by-step explanation:
You want the polar coordinate equivalent of (-5√3, -5).
ConversionThe polar form of (a, b) is ...
(a, b) = (r; θ)
where ...
r = √(a² +b²)
θ = arctan(b/a) . . . . . with attention paid to quadrant
ApplicationFor the given values, the polar form is ...
r = √((-5√3)² +5²) = √(75 +25) = 10
θ = arctan(5/(-5√3)) = arctan(-1/√3) = 150°
The angle is a quadrant II angle with a reference angle of 30°.
The polar form is (10; 150°).
__
Additional comment
Some calculators will do the coordinate conversion based on a vector or ordered pair. Others require the coordinates of the point to be expressed as a complex number, as in the attachment. (Note the calculator mode is set to DEGrees.)
opic: Choosing ping-pong balls without replacement.
There are 6 white and 3 orange ping-pong balls in a brown paper bag. Two balls are randomly chosen.
Enter your answers as fractions. They do not need to be reduced.
(The "Preview" simply displays your answer in nice mathematical text.
It does not mean that your answer is either right or wrong.)
a) How many total balls are in the bag at the start?
b) What is the probability that the 1st ball is orange?
P(1st = orange) =
c) What is the probability that the 2nd ball is also orange, given that the 1st ball was orange?
P(2nd = orange | 1st = orange) =
d) What is the probability that both the 1st and the 2nd balls are orange
a) The total number of balls in a bag is 9.
b) The probability that the first ball chosen is orange is 1/3.
c) The probability that the 2nd ball is also orange is 1/4.
d) The probability that both balls are orange is 1/12.
Given that:
Balls, White = 6 and Orange = 3
a) The total of ping-pong balls in the bag at the start is calculated as,
Total ball = 6 + 3
Total ball = 9
b) The probability that the first ball chosen is orange is calculated as,
P(Orange) = 3/9
P(Orange) = 1/3
c) There will be 8 balls in the bag, of which 2 are orange if the first ball selected was an orange ball. Then the probability is calculated as,
P(Orange) = 2/8
P(Orange) = 1/4
d) The product rule of probability may be used to determine the likelihood that the first and second balls are both orange:
P(Orange and Orange) = 1/3 x 1/4
P(Orange and Orange) = 1/12
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Please help i will mark brainliest
Use the graph to answer the question.
graph of triangle ABC with vertices at negative 2 comma negative 7, 3 comma negative 2, 2 comma negative 10 and a second triangle A prime, B prime C prime with vertices at 2 comma 7, negative 3 comma 2, negative 2 comma 10
Determine the direction and degree of rotation used to create the image.
90° counterclockwise rotation
270° counterclockwise rotation
90° clockwise rotation
180° clockwise rotation
Answer:
(d) 180° clockwise rotation
Step-by-step explanation:
Given points A(-2, -7), B(3, -2), C(2, -10) and A'(2, 7), B'(-3, 2), C'(-2, 10), you want to know the angle and direction that rotates ∆ABC to ∆A'B'C'.
SignsWe notice the signs of each of the coordinates of ABC have been reversed for the coordinates A'B'C'. For example, A(-2, -7) became A'(2, 7).
A line joining these points is a straight line through the origin. The measure of its angle at the origin is 180°. This is the angle of rotation of A'B'C' with respect to ABC.
The image is created by 180° clockwise rotation, choice D.
__
Additional comment
When rotation is 180°, the direction is immaterial. A clockwise rotation gets you to the same place as a counterclockwise rotation.
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How knows how do this help me please
Answer:
Step-by-step explanation:
Solve for x, y and z
2x – y + 3z = 10
x + 3y – 2z = 5
3x – 2y + 4z = 12
Answer:
Given system of linear equations are
2x+3y+3z=5
x−2y+z=−4
3x−y−2z=3.
Represent it in matrix form
⎣
⎢
⎢
⎡
2
1
3
3
−2
−1
3
1
−2
⎦
⎥
⎥
⎤
⎣
⎢
⎢
⎡
x
y
z
⎦
⎥
⎥
⎤
=
⎣
⎢
⎢
⎡
5
−4
3
⎦
⎥
⎥
⎤
which is in the form of AX=B
A=
⎣
⎢
⎢
⎡
2
1
3
3
−2
−1
3
1
−2
⎦
⎥
⎥
⎤
∣A∣=10+15+15=40
=0
∴ A
−1
exists
To find adjoint of A
A
11
=5,A
12
=5,A
13
=5
A
21
=3,A
22
=−13,A
23
=11
A
31
=9,A
32
=1,A
33
=−7
Adj(A)=co-factor
⎣
⎢
⎢
⎡
5
3
9
5
−13
1
5
11
−7
⎦
⎥
⎥
⎤
=
⎣
⎢
⎢
⎡
5
5
5
3
−13
11
9
1
−7
⎦
⎥
⎥
⎤
A
−1
=
∣A∣
1
Adj(A)
=
40
1
⎣
⎢
⎢
⎡
5
5
5
3
−13
11
9
1
−7
⎦
⎥
⎥
⎤
X=A
−1
B
=
40
1
⎣
⎢
⎢
⎡
5
5
5
3
−13
11
9
1
−7
⎦
⎥
⎥
⎤
⎣
⎢
⎢
⎡
5
−4
3
⎦
⎥
⎥
⎤
X=
40
1
⎣
⎢
⎢
⎡
25−12+27
25+52+3
25−44−21
⎦
⎥
⎥
⎤
X=
40
1
⎣
⎢
⎢
⎡
40
80
−40
⎦
⎥
⎥
⎤
⎣
⎢
⎢
⎡
x
y
z
⎦
⎥
⎥
⎤
=
⎣
⎢
⎢
⎡
1
2
−1
⎦
⎥
⎥
⎤
Hence, x=1,y=2 and z=−1
The solution to the system of equations is
x = 3
y = 2
z = 2
How to solve the simultaneous linear equation?To solve for x, y, and z, we can use the elimination method or substitution method. Here, we will use the elimination method.
First, we will eliminate y from the equations by multiplying the first equation by 3 and the second equation by 1, and then adding them:
(3) (2x – y + 3z = 10)
6x – 3y + 9z = 30
(1) (x + 3y – 2z = 5)
x + 3y – 2z = 5
Adding the two equations gives:
7x + 7z = 35
Simplifying, we get
x + z = 5 (Equation 1)
Next, we will eliminate y again by multiplying the second equation by 2 and the third equation by 3, and then adding them:
(2) (x + 3y – 2z = 5)
2x + 6y – 4z = 10
(3) (3x – 2y + 4z = 12)
9x – 6y + 12z = 36
Adding the two equations gives:
11x + 8z = 46
Substituting x + z = 5 from Equation 1 into the above equation, we get:
11(x + z) + 8z = 46
11x + 19z = 46
Solving for z, we get:
z = 2
Substituting z = 2 into x + z = 5 from Equation 1, we get:
x + 2 = 5
x = 3
Finally, substituting x = 3 and z = 2 into any of the original equations, we can solve for y:
2x – y + 3z = 10
2(3) – y + 3(2) = 10
6 – y + 6 = 10
y = 2
Therefore, the solution to the system of equations is:
x = 3
y = 2
z = 2
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1) Consider the quadratic function: f (x) = (x + 3)2 – 2 and a function, g(x), which is created by translating
f (x) three units to the right, two units up, and reflected vertically over the x-axis. Complete the following tasks:
a) 15 points: Graph f (x) on the axes below and label it. Graph g(x) on the axes below and label it.
10 points: Write the vertex form equation for g(x) below.
A graph of f(x) is shown in the image below.
A graph of f(x) is shown in the image below.
The vertex form equation for g(x) is g(x) = -x²
What is a translation?In Mathematics and Geometry, the translation a geometric figure or graph to the right simply means adding a digit to the value on the x-coordinate of the pre-image while the translation a geometric figure or graph upward simply means adding a digit to the value on the y-coordinate (y-axis) of the pre-image.
Since the parent function is f(x)= (x + 3)² - 2, g(x) would be created by translating f(x) three units to the right, two units up, and reflected vertically over the x-axis as follows;
f(x) = (x + 3)² - 2
g(x) = -[(x + 3 - 3)² - 2 + 2]
g(x) = -x²
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Which set of ordered pairs gives the polygon shown?
(-4.2), (-4, -5), (1.5, -5), (1.5, 2)
(1.5, 2), (1.5, -4.5), (-4.5, -4), (2, -4)
(-4, -4.5), (-4.5, 1.5), (1.5, 2), (-4, 2)
(1.5, -4.5), (-4, -4.5), (-4, 2), (1.5, 2)
The points of the polygon are:
(1.5, 2)
(-4, 2)
(-4, -4.5)
(1.5, -4.5)
Option D is the correct answer.
We have,
From the coordinate plane,
There are 4 points that form the polygon,
The points are all in ordered pairs.
So,
(1.5, 2)
(-4, 2)
(-4, -4.5)
(1.5, -4.5)
Thus,
The points of the polygon are:
(1.5, 2)
(-4, 2)
(-4, -4.5)
(1.5, -4.5)
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The question is on the image when u get the answer get back to me asap
Answer:
Step-by-step explanation:
y=-2x+2
Two sets of data have the same measures of central tendency. Are the data sets the same? Explain.
Sample Response/ Explanation: The data sets could be the same, but not necessarily. It is possible for data sets to differ in their spread but still have the same measures of center. The measures of spread could be different.
The data sets could be the same, but not really. It is possible for the data sets to differ in their spread but still have the same measures of center. The measures of spread could be different though.
PLEASE LOOK AT PICTURE
The numeric ratio of the segment ratio are:
CD: DB | √5:10 | part:partCE: CA | 2:10 | part:wholeDE: BA | 1:5 | part:partCD: CB | √5:√181 | part:wholeHow to find numeric ratio?To find the numeric ratios of the given segment ratios, to calculate the distances between the given points.
CD: DB
The distance between C(6,2) and D(4,3) is:
CD = √[(6 - 4)² + (2 - 3)²] = √5
The distance between D(4,3) and B(-4,7) is:
DB = √[(4 + 4)² + (3 - 7)²] = 10
Therefore, the numeric ratio of CD:DB is:
CD:DB = √5:10
CE: CA
The distance between C(6,2) and E(4,2) is:
CE = √[(6 - 4)² + (2 - 2)²] = 2
The distance between A(-4,2) and C(6,2) is:
CA = √[(-4 - 6)² + (2 - 2)²] = 10
Therefore, the numeric ratio of CE:CA is:
CE:CA = 2:10
DE: BA
The distance between D(4,3) and E(4,2) is:
DE = √[(4 - 4)² + (3 - 2)²] = 1
The distance between B(-4,7) and A(-4,2) is:
BA = √[(-4 + 4)² + (7 - 2)²] = 5
Therefore, the numeric ratio of DE:BA is:
DE:BA = 1:5
CD: CB
The distance between C(6,2) and D(4,3) is:
CD = √[(6 - 4)² + (2 - 3)²] = √5
The distance between C(6,2) and B(-4,7) is:
CB = √[(6 + 4)² + (2 - 7)²] = √181
Therefore, the numeric ratio of CD:CB is:
CD:CB = √5:√181
Based on the numeric ratios, determine the type of ratio for each segment ratio:
CD: DB is a part:part ratio
CE: CA is a part:whole ratio
DE: BA is a part:part ratio
CD: CB is a part:whole ratio
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Find s(t), where s(t) represents the position function, v(t) represents the velocity function, and a(t) represents the acceleration function.a(t)= -30t+6, with v(0)=8 and s(0)=2
The position function is s(t) = -5t³ + 3t² + 8t + 2.
We have,
To find s(t), we need to integrate the velocity function v(t) since velocity is the rate of change of position with respect to time.
To do this, we need to first find the velocity function v(t) by integrating the acceleration function a(t):
a(t) = -30t + 6
Integrating with respect to t, we get:
v(t) = -15t² + 6t + C1
We are given that v(0) = 8, so we can use this to solve for the constant C1:
v(0) = -15(0)² + 6(0) + C1 = C1
C1 = 8
Now we have the velocity function:
v(t) = -15t² + 6t + 8
To find s(t), we need to integrate v(t) with respect to t:
s(t) = -5t³ + 3t² + 8t + C2
We are given that s(0) = 2, so we can use this to solve for the constant C2:
s(0) = -5(0)³ + 3(0)² + 8(0) + C2 = C2
C2 = 2
Now we have the position function:
s(t) = -5t³ + 3t² + 8t + 2
Therefore,
The position function is s(t) = -5t³ + 3t² + 8t + 2.
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Please help!!!!! I am in need of it, this is for math nation unit 1 and im failing!!!!!!!
Answer:
5
Step-by-step explanation:
use the table, when it asks f(2) that says what is the output *y) when the input is 2. Find when x=2 your answer is the y value, f(2)=5
the function h is defined by the following rule. h(x)=4x+5 complete the function table
For the function h(x) the values of h(x) when x=0,1,2,3,4,5 are 5, 9, 13,17,21,25 respectively
The given function is h(x) 4x+5
h of x equal to four times of x plus five
We have to find the values of h(x) for different values of x
x=0, h(x) = 5
x=1, h(x)=9
x=2, h(x)=13
x=3, h(x)=17
x=4, h(x)=21
x=5, h(x)=25
Hence, for the function h(x) the values of h(x) when x=0,1,2,3,4,5 are 5, 9, 13,17,21,25 respectively
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Please answer asap!! what is the equation that best models the data from the table after the data has been linearized?
The equation that best models the data from the table after the data has been linearized is y=294755 * 1.21728^x. This equation follows an exponental model.
When is the exponential model best used for an equation?Looking at the data, it is very evident that it is not increasing linearly but rather exponentially.
An exponential equation has the general pattern of formula which y = ab^x, where a is the main value and b is the growth factr.
The question below is as seen in the picture, and the above answer is dependent on it.
What is the equation that best models the data from the table after the data has been linearized?
X y
2 4.4
7 18.2
13 120.0
19 715.4
22 1,768.3
26 5,775.9
30 10.508.5
(1 point)
logy=0.12502x+0.427231
y=1,350 76x+1,350.76
y=294755 * 1.21728^x
y=5,927 281og x-3,880 59
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A plane is heading due east with a ground speed of 398 mph. A 50-mph wind is blowing at a bearing 48 degrees. Find the planes resulting speed.
Abby is collecting data for her science fair project about nutrition. She gathers data about the number of grams of fat and the number of calories in a serving of fruit.
Describe patterns in the data
There is no association between the number of fat grams and the number of calories because there are no outliers or clusters.
What does no association mean ?To make this clear, when we claim that there is no correlation between two variables, it indicates a lack of comprehensible patterns or connections. Put another way, adjustments in one factor do not seem to impact the other.
In relation to the inquiry at hand, if fat grams and calorie figures have no notable outliers or groupings, there might be an inference that these two variables are not related.
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Graph with x axis labeled Quantity Demanded and numbered in hundreds, 100 to 500. Y axis is Price, with prices 0 to 6. A line representing the Demand Curve starts at 100, 5 and drops at an angle down to 500, 1. Solid lines extend upward from the x axis to the green line at points 100, 5, 200, 4, 300, 3, 400, 2, and 500, 1. Public Domain Based on the graph, how is quantity demanded related to price? (5 points) Quantity demanded decreases as price decreases. Quantity demanded is equal to the product's price. Quantity demanded decreases as price increases. Quantity demanded increases as price increases.
Based on the information, the correct information regarding the graph is that C. Quantity demanded decreases as price increase.
How to explain the graphThe graph shows that for every increase of 100 units of the goods demanded, price reduces by 1 unit.
When 500 units was demanded, the price was at 1. Therefore, if 550 units are demanded, the price will reduce by half, which means the price would drop to 0.5.
The price would drop to 0.5. In this case, the the correct information regarding the graph is that Quantity demanded decreases as price increase.
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The table shows the distribution, by age and gender, of the million people in a certain region who live alone. Use the data in the table to find the probability that a randomly selected person in the region is a woman in the 1824 age range living alone.
The probability that a randomly selected person in the region is a woman in the 18-24 age range living alone is approximately 0.14 or 14%.
To find the probability that a randomly selected person in the region is a woman in the 18-24 age range living alone, we need to look at the intersection of the "Female" row and the "0-24" age column in the table.
The probability of selecting a woman in the 18-24 age range living alone is:
P(woman, 18-24, living alone) = (Number of women in the 18-24 age range living alone) / (Total number of people living alone)
From the table, we can see that the number of women in the 18-24 age range living alone is 20.9. The total number of people living alone is 153.6.
P(woman, 18-24, living alone) = 20.9 / 153.6
P(woman, 18-24, living alone) = 0.1362 or approximately 0.14
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The complete question:
The table shows the distribution, by age and gender, of the million people in a certain region who live alone. Use the data in the table to find the probability that a randomly selected person in the region is a woman in the 1824 age range living alone. Age |0-24|25-49|50+ |Total
Male|21.9|25.3 |28.6|75.8
Fem |20.9|26.1 |30.8|77.8
Tot |42.8|51.4 |59.4|153.6
Jake just learned to identify the difference between an oak tree and a
maple tree. He was curious about the concentration of these trees in his
neighborhood, so he went out and identified several trees that were either
by the pond or in the field.
Unfortunately, he smudged his data tables and can't read some of the
values. The absolute and relative frequency tables below show Jake's
salvaged data. Can you help him figure out the rest?
Fill in the missing values from each table.
The value of row total of the column total's is 165.
The value of row total of field is 91
How to calculate the valueColumn total of maple can be found by:
(46.32 /100) * y =44
Or y = (44 *100)/46.32
Or y = 94.991 =95 (approx)
Now we get value of field under maple by
Value of field under maple = (column total - value of pond under maple) = (95 - 44) = 51
Value of row total of the column total's = (column total of oak + column total of maple = (70 + 95) = 165 (total data)
Value of row total of field = ( value of field under oak + value of field under maple) = (40 + 51) = 91
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A marble is selected at random from a jar containing 10 red marbles, 50 yellow marbles, and 40 green marbles. Find the theoretical probability that it is
either red or green.
P(red or green) = (Type an integer or a simplified fraction.)
Answer:0.5.
Step-by-step explanation:
Answer:
0.5
Step-by-step explanation:
hope this helps
The Downtown Community Barbecue served 404 dinners. A child's plate cost $2.80 and an adult's plate cost $6.90. A total of $1,963.50 was collected. How many of each type of plate was served? Round answers to the nearest whole person.
The number of childs plate are 201 and adult's plate are 203.
Let's use C to represent the number of child plates and A to represent the number of adult plates.
We know that a child's plate costs $2.80 and an adult's plate costs $6.90.
Therefore, we can write two equations based on the information given:
The total number of plates served is 404
C + A = 404 ...(1)
C=404-A
The total amount collected is $1,963.50
2.8C + 6.9A = 1963.5 ..(2)
2.8(404-A)+6.9A= 1963.5
1131.2 - 2.8A +6.9A=1963.5
4.1 A =1963.5 -1131.2
4.1A=832.3
Divide both sides by 4.1
A=832.3/4.1
A=203
Now put A in equation (1)
C+203=404
C=404-203
C=201
Hence, the number of childs plate are 201 and adult's plate are 203.
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mary read 1/7 pages on monday.there are 490 pages. how many pages did she read?
Answer: 70 pages
Step-by-step explanation: If she read 1/7 pages on monday and the book is 490 pages, divide. 490 ÷ 1/7 = 70. 70 × 7 is 490. So use these operations in future problems. Just make sure to read carefully!