document.write( "Question 963733: You have a piggy bank containing a total of 99 coins in dimes and quarters. If the piggy bank contains $17.70, how many dimes are in the piggy bank? \n" ); document.write( "
Algebra.Com's Answer #808148 by CubeyThePenguin(3113)\"\" \"About 
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d = number of dimes
\n" ); document.write( "q = number of quarters\r
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\n" ); document.write( "\n" ); document.write( "d + q = 99
\n" ); document.write( "10d + 25q = 1770\r
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\n" ); document.write( "\n" ); document.write( "25d + 25q = 2475
\n" ); document.write( "-10d - 25q = -1770
\n" ); document.write( "-----------------------
\n" ); document.write( "15d = 705
\n" ); document.write( "d = 47\r
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\n" ); document.write( "\n" ); document.write( "There are 47 dimes in the piggy bank.
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