The variables Y and X have a proportional relationship, and y=12 when x=5. What is value of y when x =8? Enter your answer in the box. y=_____

Question

asked Jul 6, 2019 124k views

2 Answers

VFreguglia · Answer 1 · 2019-07-12T18:05:50+0000

Answer:

y=19.2

Explanation:

Here as y is proportional to x

so

y=kx

When y = 12 , x = 5

We have

12 = 5k

k=(12)/(5)=2.4

So now we have

y=2.4x

When x = 8

y = 2.4(8)

y = 19.2