document.write( "Question 1168201: A lawn can be mowed in 20 minutes less time with a riding mower than a push mower. After using riding mower for 15 minutes, it had mechanical problems and using push mower, the task took 25 more minutes to complete. Determine time (minutes) to mow entire lawn with riding mower.\r
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Algebra.Com's Answer #792849 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "A lawn can be mowed in 20 minutes less time with a riding mower than a push mower. After using riding mower for 15 minutes, it had mechanical problems and using push mower, the task took 25 more minutes to complete. Determine time (minutes) to mow entire lawn with riding mower.\r
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Let time riding mower takes be T
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document.write( "Then time push mower takes = T + 20
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document.write( "We then get the following JOB equation: 
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document.write( "15(T + 20) + 25T = T(T + 20) ------ Multiplying by LCD, T(T + 20)
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document.write( "(T - 30)(T + 10) = 0
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document.write( "T - 30 = 0             OR                   T + 10 = 0
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document.write( "Time riding mower takes, or           OR         T = - 10 (ignore) \n" );
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