SOLUTION: Lisa can shovel snow from her driveway in 35 minutes. Tom can do the same job in 55 minutes. How long would it take Lisa and Tom to shovel the driveway if they worked together?

Question 339137: Lisa can shovel snow from her driveway in 35 minutes. Tom can do the same job in 55 minutes. How long would it take Lisa and Tom to shovel the driveway if they worked together?

Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
Lisa can shovel snow from her driveway in 35 minutes. Tom can do the same job in 55 minutes. How long would it take Lisa and Tom to shovel the driveway if they worked together?
.
Let x = minutes if they worked together
then
x(1/35 + 1/55) = 1
Multiplying both sides by 35*55:
x(55 + 35) = 35*55
x(90) = 35*55
x = 1925/90
x = 21.39 minutes

RELATED QUESTIONS
Lisa can shovel snow from her driveway in 65 minutes. Jim can do the same job in 55... (answered by checkley77)

Lisa can shovel snow from her driveway in 65 minutes. Jim can to the same job in 55... (answered by Alan3354)

lisa can shovel snow from her driveway in 60 minutes. bill can do the same in 55 minutes. (answered by Alan3354,DominoEfx,richwmiller)

#16 LISA CAN SHOVEL SNOW FROM HER DRIVEWAY IN 65 MINUTES. bILL CAN DO THE DRIVEWAY IN 45 (answered by oberobic)

Maria can shovel snow from her driveway in 65 minutes. Tom can do the same job in 45... (answered by scott8148,oberobic)

Janet can shovel snow from her driveway in 65 minutes. Tom can do the same job in 50... (answered by mananth)

This is in algebra 2. Here is the word problem: Lisa can shovel snow from her driveway... (answered by user_dude2008)

Janet can shovel snow from her driveway in 45 minutes. Bill can do the same job in 35... (answered by stanbon)

Maria can shovel snow from her driveway in 60 minutes. Jim can do the same job in 55... (answered by Alan3354)