SOLUTION: Write an equation expressing the variation described; then use it to solve the problem It take one person 18 hour to paint a fence. If the time, T, that it takes to paint a fenc

Algebra ->  Graphs -> SOLUTION: Write an equation expressing the variation described; then use it to solve the problem It take one person 18 hour to paint a fence. If the time, T, that it takes to paint a fenc      Log On


   



Question 1000608: Write an equation expressing the variation described; then use it to solve the problem
It take one person 18 hour to paint a fence. If the time, T, that it takes to paint a fence varies inversely with the number of painters, P, how long will it take four people to paint the fence?

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
This is the second sentence part of the description:
T is time to do the painting
P is how many painters
k is proportionality constant or variation constant;
T=k%2FP

The first sentence means 18=k%2F1
k=18%2A1%2A%28hours%29%28painters%29

highlight%28T=18%2FP%29.

What if P=4?
T=18%2F4
T=9%2F2
highlight%28T=4%261%2F2%29