Question

A quantity, y , varies directly as x . When y = 10, x = 6. Find x when y = 14. 60 8.4 23.3 4.3 PLEASE ANSWER QUICK I WILL MARK BRAIN IEST

Answer 1

8.4

Explanation:

For 2 numbers to vary directly, it means they have a proportional relationship. In other words, there is a constant ratio between x and y.

We can show this ratio as:

y : x

10 : 6

To get the y side to be 14, we have to multiply both sides by 14/10 (which is 1.4 in decimal form):

y : x

10 : 6

× 1.4 × 1.4

14 : 8.4

So, when y is 14, x is 8.4.