The cost of stainless steel tubing varies jointly as the length and the diameter of the tubing.

Question

The cost of stainless steel tubing varies jointly as the length and the diameter of the tubing. If a 5 foot length with diameter 2 inches costs $48.00 , how much will a 19 foot length with 3 inches diameter cost?

Answer 1

C=k*L*D

48 = k*5*2

k= 4.8

C=4.8*19*3

You should be able to finish from here.