document.write( "Question 274683: Suppose Tom has 21 coins totaling $3.45. If he has only dimes and quarters how much of ech does he have? \n" ); document.write( "
Algebra.Com's Answer #200419 by JBarnum(2146)\"\" \"About 
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Suppose Tom has 21 coins totaling $3.45. If he has only dimes and quarters how much of ech does he have?\r
\n" ); document.write( "\n" ); document.write( "these are fun
\n" ); document.write( "dimes=$0.10
\n" ); document.write( "quarters=$0.25
\n" ); document.write( "d=dimes
\n" ); document.write( "q=quarters
\n" ); document.write( "so \"d%2Bq=21\" and \".10d%2B.25q=3.45\" i will use elimination method but u could also use substitution method.
\n" ); document.write( "______________________________________________
\n" ); document.write( "\"-.10d-.10q=-2.10\" MULTIPLY BY -.10
\n" ); document.write( "\".10d%2B.25q=3.45\" ADD THE 2 EQUATIONS TOGETHER
\n" ); document.write( "\".15q=1.35\" DIVIDE BY .15
\n" ); document.write( "\"highlight%28q=9%29\"
\n" ); document.write( "\"d%2Bq=21\"
\n" ); document.write( "\"d%2B9=21\"SUBTRACT 9
\n" ); document.write( "\"highlight%28d=12%29\"
\n" ); document.write( "So 9 quarters and 12 dimes
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