document.write( "Question 158114: A change maching contains nickels,dimes, and quarters. There are 75 coins in the machine, and the value of the coins is $7.25. There are 5 times as many nickels as dimes. Find the number of coins of each type in the machine. \n" ); document.write( "

Algebra.Com's Answer #116510 by Edwin McCravy(20060) $\"\"$ $\"About$

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A change maching contains nickels,dimes, and quarters. There are 75 coins in the machine, and the value of the coins is $7.25. There are 5 times as many nickels as dimes. Find the number of coins of each type in the machine.
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document.write( ">>...There are 75 coins in the machine...<<\r\n" );
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document.write( ">>...the value of the coins is $7.25...<<\r\n" );
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document.write( "We remove the decimals by multiplying through\r\n" );
document.write( "by 100:\r\n" );
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document.write( "We can also simplify it further by dividing\r\n" );
document.write( "through by \r\n" );
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document.write( ">>...There are 5 times as many nickels as dimes...<<\r\n" );
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document.write( "So we have this system of equations:\r\n" );
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document.write( "Can you solve that system?  If not post again\r\n" );
document.write( "asking how.\r\n" );
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document.write( "Solution:  \r\n" );
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document.write( "50 nickels, 10 dimes, 15 quarters\r\n" );
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document.write( "Edwin

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