document.write( "Question 395370: On a farm there are chicken and horses. There are a total of 79 heads and 176 legs. How many chickens are on the farm? \n" ); document.write( "
Algebra.Com's Answer #280588 by Edwin McCravy(20055)\"\" \"About 
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On a farm there are chicken and horses. There are a total of 79 heads and 176 legs. How many chickens are on the farm?
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document.write( "A horse has 1 pair of front legs and 1 pair of back legs.  A chicken\r\n" );
document.write( "has only 1 pair of \"front\" legs, and no back legs.\r\n" );
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document.write( "Since there are 176 legs, there are 88 leg-pairs.  Each of the 79\r\n" );
document.write( "heads has 1 front leg-pair under it, so 79 of the leg-pairs are front\r\n" );
document.write( "leg-pairs, and the remaining 9 leg pairs are back leg-pairs.  They \r\n" );
document.write( "belong to the horses, so there are 9 horses, and the other 70 \r\n" );
document.write( "animals are chickens.\r\n" );
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document.write( "Edwin
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