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Mathematics 8 Online
OpenStudy (anonymous):

Jack mows his lawn for 4 hrs. Mary can mow the same lawn in 3 hrs. How long would it take them to mow the lawn together?

OpenStudy (anonymous):

okey dokey. shall we go right to the answer?

OpenStudy (anonymous):

it is \[\frac{3\times 4}{3+4}\]

OpenStudy (anonymous):

we can take many steps but that is what you will get and if you see the pattern it will make your life easier, especially if you have to do this on a test

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