Question

The variables y and x have a proportional relationship, and y = 7 when x = 2.

What is the value of y when x = 5?



Enter your answer as a decimal in the box.

y=_

Answer 1

Answer:

17.5

Step-by-step explanation:

y ∝ x

this means that

y= k x ; where k is a constant of proportionality

when y=7 and x=2

7= k(2)

k= $\frac{7}{2}$

when x=5

y= 5* $\frac{7}{2}$

y= 17.5