Answer:
A certain shade of pink us created by adding 3 cups of red paint to 7 cups of white paint
Step-by-step explanation:
Constant of proportionality is the constant value of the ratio of two proportional quantities x and y; usually written y = kx, where k is the factor of proportionality.
To make color pink,
for every 3 cups of red , we need 7 cups of white.
Let 'r' be the cups of red required
let 'w' be the cups of white required
so , as per the question
for 3 r we need = 7 w
r = 7/3 w
so, 7/3 is constant of proportionality
Answer:
Answer is 28/4 = 7
Step-by-step explanation:
Given
Beth B = 28 problem
B has 4 times more problem than Mery m
Find
Total number of problem Mery m has if Beth has 4 times more problem than Beth
So,
B = 4 x m
m = B/4 = 28/4 = 7
Finally answer (d) is correct which is 28 ÷ 4 = m
It is a function because each x values have ONE y value
The variation equation is qr = 25
<h3>How to determine the equation?</h3>
An inverse variation is represented as:
qr = k
Where k is the constant of variation
When q = 10 and r =2.5, we have:
k = 10 * 2.5
Evaluate
k = 25
Substitute k = 25 in qr = k
qr = 25
Hence, the equation is qr = 25
Read more about variation at:
brainly.com/question/6499629
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You have to set it up as a ratio 8/5 = y/10, then you have to cross mutliply and divide. So 8×10=80 and 80/5= 16 so y=16.
