SOLUTION: It takes Eddie 2 hours to shovel the snow from a driveway and sidewalk. Brad can shovel the snow from the same sidewalk and driveway in 5 hours. How long will it take them working
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Question 1159684: It takes Eddie 2 hours to shovel the snow from a driveway and sidewalk. Brad can shovel the snow from the same sidewalk and driveway in 5 hours. How long will it take them working together to shovel the snow? Round your answer up to the next whole minute. Found 4 solutions by Boreal, josgarithmetic, solver91311, ikleyn:Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! Eddie does 1/2 in 1 hour or x/2 in x hours
Brad does 1/5 in 1 hour or x/5 in x hours
the sum is 1 full job
(x/2)+(x/5)=1
multiply both sides by 10
7x=10
x=(10/7) hours or 600/7 minutes =86 minutes rounded up.
If it takes person A time periods to complete one job, then person A can complete of the job in one time period. Likewise person B who can complete one job in time periods, can complete of the job in one time period.
Working together, A and B can complete:
of one job in one time period, which is to say they can complete one job in:
time periods. So working together, they can complete complete jobs in:
time periods
John
My calculator said it, I believe it, that settles it
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