SOLUTION: It takes 32 minutes for 9 people to paint 8 walls. How many minutes does it take 4 people to paint 6 walls?

Algebra.Com
Question 895689: It takes 32 minutes for 9 people to paint 8 walls.
How many minutes does it take 4 people to paint 6 walls?

Answer by josgarithmetic(39616)   (Show Source): You can put this solution on YOUR website!
ONE person paints walls at the rate of r walls per minute.
If n is how many people, t for time in minutes, j for amount of jobs, then .

and .
Work with them. TWO variables, two equations. Solve for r from the first equation and substitute into the second equation and solve for t.

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