document.write( "Question 251745: I would love some help with this problem. \r
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document.write( "Jack can mow a lawn in 3 hours. Marilyn can mow the same lawn in 4 hours. How much time will it take if they do it together?\r
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document.write( "Thank you so much for any help!!! \n" );
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Algebra.Com's Answer #183429 by edjones(8007)![]() ![]() You can put this solution on YOUR website! Jack does 1/3 the job in 1 hr; Marilyn 1/4 in 1 hr. \n" ); document.write( "1/3 + 1/4 \n" ); document.write( "=4/12 + 3/12 \n" ); document.write( "=7/12 of the job in 1 hr together \n" ); document.write( "Or 12/7 hrs to do the job together. \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |