document.write( "Question 965641: pat found a bag that had 29 coins consisting of dimes and quarters worth 4.70. how many quarters were in the bag? \n" ); document.write( "
Algebra.Com's Answer #808091 by CubeyThePenguin(3113)\"\" \"About 
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q = number of quarters
\n" ); document.write( "d = number of dimes\r
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\n" ); document.write( "\n" ); document.write( "d + q = 29
\n" ); document.write( "10d + 25q = 470\r
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\n" ); document.write( "\n" ); document.write( "25d + 25q = 725
\n" ); document.write( "-10d - 25q = -470
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\n" ); document.write( "15d = 255 ---> d = 17\r
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\n" ); document.write( "\n" ); document.write( "---> 17 dimes, 12 quarters
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