SOLUTION: Gina can paint 7 fence panel in 5 hours, Lim can paint 6 fence panels in 4 hour. They both work together and paint 17 panels, at the same rate how long does it take to paint those

Algebra ->  Proportions -> SOLUTION: Gina can paint 7 fence panel in 5 hours, Lim can paint 6 fence panels in 4 hour. They both work together and paint 17 panels, at the same rate how long does it take to paint those      Log On


   



Question 1152426: Gina can paint 7 fence panel in 5 hours, Lim can paint 6 fence panels in 4 hour.
They both work together and paint 17 panels, at the same rate how long does it take to paint those 17 fence panels

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Gina can paint 7 fence panel in 5 hours,
g paints 7/5 panels per hr
:
Lim can paint 6 fence panels in 4 hour.
L paints 6/4 panels per hr
:
They both work together and paint 17 panels, at the same rate how long does it take to paint those 17 fence panels
let t = no. of hrs
7%2F5t + 6%2F4t = 17
multiply by 20, get rid of the denominators
20*7%2F5t + 20*6%2F4t = 20(17)
cancel the denominators
4(7t) + 5(6t) = 340
28t + 30t = 340
58t = 340
t = 340/58
t = 5.86 hr or 5 + .86(60) = 5 hrs 52 min