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OpenStudy (anonymous):
Jack usually mows his lawn in 6 hours. Marilyn can mow the same lawn in 4 hours. How much time would it take for them to mow the lawn together?
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OpenStudy (amistre64):
how much do they mow in 1 hour? j = 1/6 ; m=1/4 in one hour they get 10/24 = 5/12 done 12/5 gets your total
OpenStudy (amistre64):
2.4 hours
OpenStudy (amistre64):
2 hr 24 mins ?perhaps?
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