document.write( "Question 269743: mike a salvation army ringer bell ringer has 5 fewer quarters that nickels. If his cup has $5.95 in quarters and nickels , how many nickels does he have. \n" ); document.write( "

Algebra.Com's Answer #197650 by josmiceli(19441) $\"\"$ $\"About$

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given:
\n" ); document.write( " $\"q+=+n+-+5\"$
\n" ); document.write( "(2) $\"5n+%2B+25q+=+595\"$ (in cents)
\n" ); document.write( "--------------------------------
\n" ); document.write( " $\"n+-+q+=+5\"$
\n" ); document.write( "(1) $\"5n+-+5q+=+25\"$
\n" ); document.write( "Subtract (1) from (2)
\n" ); document.write( "(2) $\"5n+%2B+25q+=+595\"$
\n" ); document.write( "(1) $\"-5n+%2B+5q+=+-25\"$
\n" ); document.write( " $\"30q+=+570\"$
\n" ); document.write( " $\"q+=+19\"$
\n" ); document.write( "and, since
\n" ); document.write( " $\"q+=+n+-+5\"$
\n" ); document.write( " $\"19+=+n+-+5\"$
\n" ); document.write( " $\"n+=+19+%2B+5\"$
\n" ); document.write( " $\"n+=+24\"$
\n" ); document.write( "He has 24 nickels
\n" ); document.write( "check:
\n" ); document.write( "(1) $\"5n+-+5q+=+25\"$
\n" ); document.write( " $\"5%2A24+-+5%2A19+=+25\"$
\n" ); document.write( " $\"120+-+95+=+25\"$
\n" ); document.write( " $\"25+=+25\"$
\n" ); document.write( "OK \r
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