Question

y varies jointly with p and q when p=1 and q=2 y=30 so I have to find y when p = 10 and q= 3 im pretty sure the answer is 300 but I want to make sure

Answer 1

Joint variation is

z=kxy.

Answer 2

Or in your case,

y=kpq

where K is a constant number.

Answer 3

Soo

30=k(1)(2)

Answer 4

30=2k.

What does K=? @johnrocks989

Answer 5

Once we have found K, which we know is 15 because 30/2 is 15

We plug in p and q

So y=(15)(10)(3)

So what does y=?

Answer 6

this math is hurting my head lol thank you for helping me I think I have it now :) marrisa

Answer 7

You're welcome lol