Question

y varies inversely with x, and x = 150 when y = 3. Find the inverse variation equation and use it to find the value of x when y = 90.
Answer

1/5

9/5

5

5/9

Answer 1

y varies inversely with x : y = k/x

x = 150, y = 3 : 3 = k/150

k = 3(150) = 450

find x when y = 90

y = k/x

90 = 450/x

x = 90/450 = ?

Answer 2

0.2

Answer 3

what is 0.2? It's 2/10.

What is the simplified version of 2/10?

Answer 4

1/5

Answer 5

good job :)

Answer 6

thanx