Answer:
18
Step-by-step explanation:
w varies directly with z, let k be the constant of proportionality, hence this can be represented by the equation:
w = kz
When z = 4, w = 12, hence we need to find the value of the constant of proportionality, substituting:
12 = 4k
Dividing both sides by 4:
12/4 = 4k/4
k = 3
Therefore the equation becomes:
w = 3z
The value of w when z = 6 is given as:
w = 3(6)
w = 18
please Solve
3(2x - 5) = 27
Answer: x=7
Step-by-step explanation: 6x-15=27
6x=42
x=7
What is the coefficient in the expression; 21 + 3x
A rule that airline pilots use to estimate outside temperature in degrees Fahrenheit at an altitude of h thousand feet is to double h, subtract 15, and multiply the result by -1. State a rule for the altitude in feet based upon the outside temperature. At what altitude is outside temperature about -51°F?
Answer:
The altitude is 33 thousand feet at the given temperature
Step-by-step explanation:
We firstly would need to write out the rule.
We can do this by by doubling h, subtracting 15 and multiply the result by -1
Kindly note that h is in thousands of feet
That would be ;
T = (2 * h - 15) * -1
T = -1(2h - 15)
T = -2h + 15
T = 15 - 2h
So for the altitude in feet at a temperature of - 51 degrees Fahrenheit
We simply substitute the value of -51 for the temperature
So we have;
-51 = 15 - 2h
2h = 15 + 51
2h = 66
h = 66/2
h = 33 thousand feet
What is the value of the expression below
Answer:
A. 10
Step-by-step explanation:
i need help with this asap!homework is due tomorrow.
Answer:
If triangle ABC is a right angled triangle,right angled at C
AB²=AC² + BC²
Pls mark me brainliest
Step-by-step explanation:
How many solutions does a system of equations have when solving results in the statement 3 = 5?
A. One solution, x = 3
B. No solution
C. Infinitely many solutions
D. One solution, x = 5
Answer:
B. No solution
Step-by-step explanation:
Given that the result of the equation is 3 = 5
Therefore the results of the equation is impossible to be correct, and therefore, there are no values that can be given to the variables to make the equation true.
The characteristics of an equation with no solution is one whose result makes a statement that is false, such as given in the question, and the equations are said to be contradictory or not compatible.
Jill says 12.6¯¯¯ is less than 12.63. Explain her error.
P.S: The line is supposed to be over the 6
Answer:
Her error is 12.6¯¯¯ being more than 12.63
Step-by-step explanation:
The bar above the 6 means repeating so 12.6¯¯¯ would be 12.666 and 12.666 is more than 12.63.
The length between the bases on a baseball field is 90 feet. A scale drawing shows the distance between the bases are 2 1/5 inches. one inch on this drawing equals how many feet?
Answer:
So the distance from home plate to 2nd base is 127.279 ft
Step-by-step explanation:
I think it is right hope it helps :)
Answer:
Step-by-step explanation:
Jordan created a scale drawing of a rectangular room. The drawing is 8 inches long by 6 inches wide He used a scale of 2 inch = 3 feet . What id the area ,in square feet , of the room
Solve
(6x + 5) - (x + 3)
Answer:
5x+2
Step-by-step explanation:
6x-x=5x and 5-3=2
so 5x+2 is the answer.
Solve the following proportion using the multiplication property of equality.
2/35=h/60
h=____ (Type as a interger or simplified fraction)
Stephen rolls a fair dice 300 times.
How many times would Stephen expect to
roll a two?
Answer:
50 chances to roll a 2
Step-by-step explanation:
Since Stephen is most likely rolling a 6 sided dice, divide 300 by 6 because all sides have an equal change of being rolled.
300/6 = 50
help im stuck on this
The solution to 3x - 7 = 14 is also a solution of which of the following equations?
A. 5 x - 6 = 44
B. 2 x + 12 = 28
C. 3 x - 9 = 18
D. 4 x - 12 = 16
Answer:
3х-7=14
х=21/3=7
Step-by-step explanation:
D. 4х-12=16
х= 28/4 = 7
make it braintliest please
What is the area of rhombus ABCD?
24.57 cm^2
39.00 cm^2
98.28 cm^2
78.00 cm^2
Step-by-step explanation:
The area of rom boss is 78.00cm friend
Answer: 98.28 cm^2 Is your correct answer
Step-by-step explanation:
Hope this helps:)
whats 20+1 :3 i hope you lie it!
Answer:
201
Step-by-step explanation:
dat is the answer or is it fish hmmmmm
jk it's 21 if you actually want the real answer
yooo you guise think i should get hightlights in my hair? here is a picture of me of my hair lol to give yall a visual of what may look good on me, lol i was thinking sunkiss.
Answer:
Step-by-step explanation:
In my opinion you look really pretty already, but I would say just to go for it! What have you go to lose. If you do choose to do it good luck, I’m sure it will look good.
(And if someone you think is your friend says something rude or drops you, then just remember that means they aren’t a true friend)
Answer:
yes I think it would be soo good
The sales of a certain product after an initial release can be found by the equation s=10√5t+15 where s represents the total sales (in thousands) and t represents the time in weeks after release. about $78 about $415,000 about $78,000 about $415
Answer:
About $78
Step-by-step explanation:
The company is not complete. The question is to estimate the sales 8 weeks after release. To do that, we will substitute t = 8 into the modeled function s=10√5t+15
s = 10√5(8) + 15
s = 10√40 + 15
s =10(6.32)+15
s = 63.2+15
s = 78.2
Hence the sales after 8weeks is about $78.
At a sale, the $39.97 original price of the shirt was marked down to $15.99. About
what percent of decrease is this?
Multiply
(-4) • (-8)
A. -32 B. -12 C. 12 D. 32
Answer:
D. 32
Step-by-step explanation:
= ( -4 ) x ( -8 )
= 32
John's car gets 25.3 miles per gallon. How many
miles can he drive on 11.7 gallons of gas?
Answer:
Multiply 25.3 by 11.7, to get the answer of 296.01
The IQ scores for students at a certain school follow a bell-shaped distribution with mean 102 and standard deviation
10. Kyla, a student at this school, had a standardized IQ score of 1.2. What was her actual IQ score?
104
107
111
114
120
Answer:
104
Step-by-step explanation:
If the standard deviation is 10, multiply it by .2 to get 2. Add 102 and you get 104.
How do I do this ?
The cafeteria at Midtown Middle School surveyed 575 students about their favorite food. Find the number of students that responded to the survey with burgers as their favorite food.
Chicken 8% Salad 20% Burgers 16% Fruit 24%
A) 138
B) 115
C) 46
D) 92
Answer:
D)92
Step-by-step explanation:
575=100%
burgers =16%
16/100 ×575=92
what is 9,045 divided by 15
Write equation of the circle with center c(-1, 5) and radius 3
Answer:
(x+1)^2 + (y-5)^2 = 9
Step-by-step explanation:
center = (h, k)
(x-h)^2 + (y-k)^2 = r^2
(x-(-1))^2 + (y-5)^2 = (3)^2
(x+1)^2 + (y-5)^2 = 9
Your baseball team is selling bags of popcorn to raise money for a trip. For each bag of popcorn you sell, $3 goes towards your trip. You hope to earn at least $150 for the trip. Write and solve an inequality that represents the numbers x of bags of popcorn you must sell to reach your goal.
Answer:
x > 50
Step-by-step explanation:
Let
x = number of bags of popcorns to sell
Price of each bag of popcorn = $3
You hope to earn at least $150 for the trip.
At least in inequality = >
The inequality is
Price × quantity of popcorns to sell > 150
3x > 150
Divide both sides by 3
x > 150 / 3
x > 50
Clare went to Party City to buy goodies to give out at her birthday party. She bought 15 erasers at 75 cents each. How much did the erasers cost altogether?
Answer:
multiply 15 by 0.75 and you get $11.25
-3x + 2c =3 solve for x
I need help ASAP PLZZZ!!!!
Answer:
slope is -2/5
y-intercept is 4
Answer:
See Below
Step-by-step explanation:
Ok, so slope intercept form is:
y = mx +b
Where m = slope and b = your y-intercept
lets line them up
y = mx + b
y =-2/5 x + 4
Notice that the m and b are lined up each corresponding #.
Therefore,
m = -2/5
B = 4
Slope = -2/5
y - intercept = 4
One positive number exceeds another by 7, and their product is 78. Find the numbers.
Answer:
13 and 6
Step-by-step explanation:
13 • 6 = 7813 – 6 = 7hewlp me now and uh plkz plz plz
Answer:
r=22
Step-by-step explanation:
Answer:
r = 22
Step-by-step explanation:
Given
[tex]\frac{1}{2}[/tex] r + 4 = [tex]\frac{3}{4}[/tex] r - [tex]\frac{3}{2}[/tex]
Multiply through by 4 to clear the fractions
2r + 16 = 3r - 6 ( subtract 2r from both sides )
16 = r - 6 ( add 6 to both sides )
22 = r
help PLS Which value of n makes the equation (4n - 10) + 4 = (6n - 9) true?
Answer: n= 3/2
yes!
Step-by-step explanation:
calculate the sum 4n-6=6n-9
move the varaible to the left hand side and change its sign
4n-6n-6=-9
collect terms -2n=-9+6
dive both sides of the equation by -2
ANSWER n=3/2
3 is ontop and 2 is on the bottom