Question

If p and q vary inversely and p is 4 when q is 30, determine q when p is equal to 10.

Answer 1

q = 75

Explanation:

• we can set up an proportion for this

when p = 4, q = 30

• put this as a proportion so that this is one side
• look at what i did

4 / 30 = 10 / x

4x = 300

x = 75

• here i used x as q, therefore whatever x is, will be q

q = 75