document.write( "Question 323452: Your piggy bank contains $19.75 in dimes and quarters. There are 100 coins in all. How many dimes are there? \n" ); document.write( "
Algebra.Com's Answer #231474 by checkley77(12844)\"\" \"About 
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Q+D=100 OR Q=100-D
\n" ); document.write( ".25Q+.10D=19.75
\n" ); document.write( ".25(100-D)+.10D=19.75
\n" ); document.write( "25-.25D+.10D=19.75
\n" ); document.write( "-.15D=19.75-25
\n" ); document.write( "-.15D=-5.25
\n" ); document.write( "D=-5.25/-.15
\n" ); document.write( "D=35 DIMES.
\n" ); document.write( "100-35=65 QUARTERS.
\n" ); document.write( "PROOF:
\n" ); document.write( ".25*65+.10*35=19.75
\n" ); document.write( "16.25+3.50=19.75
\n" ); document.write( "59.75=19.75
\n" ); document.write( "
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