document.write( "Question 885627: a person has certain no of cows &birds. they have 172eyes & 344 legs.how meny cows& birds does he have \n" ); document.write( "

Algebra.Com's Answer #535496 by Edwin McCravy(20055) $\"\"$ $\"About$

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a person has certain no of cows &birds. they have 172eyes & 344 legs.how meny cows& birds does he have
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document.write( "Two ways to do it: with and without algebra:\r\n" );
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document.write( "Without algbra:\r\n" );
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document.write( "Since there are 172 eyes, there are 86 animals. If they were all cows there \r\n" );
document.write( "would also be 86x4 = 344 legs. And that's how many there are, So they are all\r\n" );
document.write( "cows.  86 cows and no birds.  \r\n" );
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document.write( "So the problem is wrong for stating that he has some birds.  I suppose the trick\r\n" );
document.write( "is that 0 birds is a number of birds, since 0 is a number.\r\n" );
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document.write( "In that case I own a number of gold mines, yachts, mansions, and Ferraris.\r\n" );
document.write( "That's because I have won the lottery a number of times. Hahaha J\r\n" );
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document.write( "With algebra:\r\n" );
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document.write( "2c + 2b = 172\r\n" );
document.write( "4c + 2b = 344\r\n" );
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document.write( "Subtract the first equation from the second and get\r\n" );
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document.write( "     2c = 172\r\n" );
document.write( "      c = 86\r\n" );
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document.write( "Substituting in the first:\r\n" );
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document.write( "   2c + 2b = 172\r\n" );
document.write( "2(86) + 2b = 172\r\n" );
document.write( "  172 + 2b = 172\r\n" );
document.write( "        2b = 0\r\n" );
document.write( "         b = 0\r\n" );
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document.write( "Edwin

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