SOLUTION: dana could pain the fence in 60 minutes. Fran can paint the fence in 40 minutes.How long would it take if the worked together?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: dana could pain the fence in 60 minutes. Fran can paint the fence in 40 minutes.How long would it take if the worked together?      Log On


   



Question 454110: dana could pain the fence in 60 minutes. Fran can paint the fence in 40 minutes.How long would it take if the worked together?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Add their rates of working
Dana's rate:
( 1 fence) / ( 60 min )
Fran's rate:
( 1 fence) / ( 40 min )
+1%2F60+%2B+1%2F40+=+1%2Fx+
Multiply both sides by +120x
+2x+%2B+3x+=+120+
+5x+=+120+
+x+=+24+
It will take them 24 min working together