Question

The variables y and x have a proportional relationship, and y = 5 when x = 4. What is the value of x when y = 8? Enter your answer in the box. x =

plzz help me

Answer 1

the answer is 6.4 because i took the k12 quiz

Explanation:

Answer 2

Find out the what is the value of x when y = 8 .

To prove

As given

The variables y and x have a proportional relationship.

`y \propto x`

y = kx

Where k is the constant of proportionality.

As y = 5 when x = 4

Put in the above

5 = 4k

`k = (5)/(4)`

Now find out the value of x , when y = 8

`8 = (5* x)/(4)`

`x = (8* 4)/(5)`

x= 6.5

Therefore when y = 8 than x = 6.4