document.write( "Question 1125043: Sally was able to drive an average of 16 miles per hour faster in her car after the traffic cleared. She drove 60 miles in traffic before it cleared and then drove another 92 miles. If the total trip took 4 hours, then what was her average speed in traffic? \n" ); document.write( "
Algebra.Com's Answer #741387 by ikleyn(52847)\"\" \"About 
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document.write( "The \"time\" equation is\r\n" );
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document.write( "    \"60%2Fr\" + \"92%2F%28r%2B16%29\" = 4  hours\r\n" );
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document.write( "saying that the total time is the sum of the partial times.\r\n" );
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document.write( "You can reduce it to a quadratic equation and solve it.\r\n" );
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document.write( "But you also can use the \"trial and error\" method, which will quickly (in seconds) give you an\r\n" );
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document.write( "Answer.   r = 30 mph is the slow rate.\r\n" );
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