document.write( "Question 579260: Bill can mow a lawn in 4 hours, while John can do the same job in 6 hours. how long will it take them to mow the lawn together? \n" ); document.write( "

Algebra.Com's Answer #370914 by nerdybill(7384) $\"\"$ $\"About$

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Bill can mow a lawn in 4 hours, while John can do the same job in 6 hours. how long will it take them to mow the lawn together?
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\n" ); document.write( "Let x = time (hours) it takes for both
\n" ); document.write( "then
\n" ); document.write( "x(1/4 + 1/6) = 1
\n" ); document.write( "multiplying both sides by 12:
\n" ); document.write( "x(3 + 2) = 12
\n" ); document.write( "x(5) = 12
\n" ); document.write( "x = 12/5
\n" ); document.write( "x = 2.4 hours
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