document.write( "Question 211025: Tom has 37 coins, consisting only of dimes and quarters, worth $7.45. How many dimes and how many quarters does he have? \n" ); document.write( "
Algebra.Com's Answer #159434 by checkley77(12844)\"\" \"About 
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q+d=37
\n" ); document.write( "q=37-d
\n" ); document.write( ".25q+.10d=7.45
\n" ); document.write( ".25(37-d)+.10d=7.45
\n" ); document.write( "9.25-.25d+.10d=7.45
\n" ); document.write( "-.15d=7.45-9.25
\n" ); document.write( "-.15d=-1.80
\n" ); document.write( "d=-1.80/.15
\n" ); document.write( "d=12 dimes.
\n" ); document.write( "q=37-12
\n" ); document.write( "q=25 quarters.
\n" ); document.write( "Proof:
\n" ); document.write( ".25*25=.10*12=7.45
\n" ); document.write( "6.25+1.20=7.45
\n" ); document.write( "7.45=7.45
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