Question

y varies directly with x. When y = 20, x = 50. Find x when y = 36.

A. 75

B.80


C.90


D.105

Answer 1

Hint: 36/20

Answer 2

1.8? how is that a hint..

Answer 3

y has increased by a factor of 36/20, so x has increased by a factor of 36/20

Answer 4

So b?

Answer 5

What's 36/20 times 50?

Answer 6

90.

Answer 7

And that's your answer