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?



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x =

Answer 1

The answer is 6.4.

Explanation:

Answer 2

Given is -

The variables y and x have a proportional relationship, and y = 5 when x = 4.

`(y)/(x)=(5)/(4)`

As we have to find the value of x when y= 8 so putting y = 8 in the above relationship, we get :

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

`5x=32`

`x=6.4`

Hence, the answer is 6.4