document.write( "Question 64289: i have $1.70 in dimes and quarters. i have 3 more dimes than quarters. how many of each coin do i have?....I am the father of a 7th grader trying to explain this to her...thanks for your help... \n" ); document.write( "
Algebra.Com's Answer #44924 by checkley71(8403)\"\" \"About 
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10D+25Q=170
\n" ); document.write( "D=3+Q SO WE HAVE
\n" ); document.write( "10(3+Q)+25Q=170
\n" ); document.write( "30+10Q+25Q=170
\n" ); document.write( "35Q=170-30
\n" ); document.write( "35Q=140
\n" ); document.write( "Q=140/35
\n" ); document.write( "Q=4 SO WE HAVE 4 QUARTERS &
\n" ); document.write( "D=3+4=7 DIMES
\n" ); document.write( "PROOF
\n" ); document.write( "10*7+25*4=170
\n" ); document.write( "70+100=170
\n" ); document.write( "170=170
\n" ); document.write( "
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