SOLUTION: Jack usually mows his lawn in 5 hours. Marilyn can mow the same yard in 6 hours. How much time would it take for them to mow the lawn together?
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Question 438217: Jack usually mows his lawn in 5 hours. Marilyn can mow the same yard in 6 hours. How much time would it take for them to mow the lawn together?
Answer by unlockmath(1688) (Show Source): You can put this solution on YOUR website!
Hello,
This we can write as:
1/5 + 1/6 = 1/x
Multiply by 30x to get:
6x+5x=30
Combine terms and divide by 11 to get:
x=30/11 or 2 8/11 hours
Make sense?
RJ
www.math-unlock.com
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