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)![]() ![]() ![]() You can put this solution on YOUR website! 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( " |