document.write( "Question 371746: Tom has 27 coins. They are all nickels and dimes. If he has a total of $1.95, how many nickels does he have?
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Algebra.Com's Answer #264811 by fractalier(6550)\"\" \"About 
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Let N be the number of nickels.
\n" ); document.write( "Let D be the number of dimes.
\n" ); document.write( "Thus N + D = 27
\n" ); document.write( "The value equation is 5N + 10D = 195
\n" ); document.write( "Now multiply the first equation by five and subtract it from the second...
\n" ); document.write( "5N + 10D = 195
\n" ); document.write( "-(5N + 5D = 135)
\n" ); document.write( "we get
\n" ); document.write( "5D = 60
\n" ); document.write( "D = 12
\n" ); document.write( "N = 15
\n" ); document.write( "To check, $1.20 + .75 = $1.95
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