document.write( "Question 723565: It takes Jeff 90 mins. to mow the yard. It takes Joe 105 mins to mow the yard. What is the approximate time it will take if they work together to mow the yard? this is the problem, how do I work it out? thanks \n" ); document.write( "

Algebra.Com's Answer #443227 by Edwin McCravy(20055) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Here it is broken down so you can understand where everything comes from.\r\n" );
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\n" ); document.write( "It takes Jeff 90 mins. to mow the yard.
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document.write( "Therefore Jeff's mowing rate is 1 lawn per 90 minutes or  or \r\n" );
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\n" ); document.write( "It takes Joe 105 mins to mow the yard.
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document.write( "Therefore Joe's mowing rate is 1 lawn per 105 minutes or  or \r\n" );
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\n" ); document.write( "What is the approximate time it will take if they work together to mow the yard?
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document.write( "Let x be the answer, Then it takes them x mins to mow the yard working\r\n" );
document.write( "together.\r\n" );
document.write( "Therefore their combined mowing rate is 1 lawn per x minutes or  or  \r\n" );
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document.write( "The equation comes from:\r\n" );
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document.write( "Solve that by multiplying through by 630x\r\n" );
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document.write( "Answer  minutes.\r\n" );
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document.write( "Edwin

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