document.write( "Question 1196983: Greg is participating in a 5 -day cross-country biking challenge. He biked for 49, ,57,50 and 51 miles on the first four days. How many miles does he need to bike on the last day so that his average (mean) is 51 miles per day?\r
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Algebra.Com's Answer #830037 by ikleyn(52778) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "The governing equation is\r\n" );
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document.write( "     = 51  miles per day   (average).\r\n" );
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document.write( "The solution is in one line\r\n" );
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document.write( "    last day mileage  x = 51*5 - (49 + 57 + 50 + 51) = 48 miles.\r\n" );
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