document.write( "Question 1014402: Jerry washes his car in 2 hours 15 minutes. His son Timmy can wash the same car in 1 hour 25 minutes. How long it takes if they work togather? \n" ); document.write( "

Algebra.Com's Answer #630696 by ikleyn(52794) $\"\"$ $\"About$

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.Jerry washes his car in 2 hours 15 minutes. His son Timmy can wash the same car in 1 hour 25 minutes. How long it takes if they work togather?
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document.write( "Jerry's rate is  1 :  = 1 :  = 1 :  =  =  of the car per hour.\r\n" );
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document.write( "Timmy's rate is  1 :  = 1 :  = 1 :  =  of the car per hour.\r\n" );
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document.write( "When they work together, their rate is  +  =  =  of the car per hour.\r\n" );
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document.write( "So, it will take  of an hour for Jerry and Timmy to wash the car working together.\r\n" );
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