document.write( "Question 72687: Johnny has a piggy bank containing dimes and quarters. The number of dimes is three less than twice the number of quarters. He has a total of $2.85 in his bank. How many of each type coin is in the bank? \n" ); document.write( "
Algebra.Com's Answer #51957 by checkley75(3666)![]() ![]() ![]() You can put this solution on YOUR website! D=2Q-3 \n" ); document.write( "10(2Q-3)+25Q=285 \n" ); document.write( "20Q-30+25Q=285 \n" ); document.write( "45Q=285+30 \n" ); document.write( "45Q=315 \n" ); document.write( "Q=315/45 \n" ); document.write( "Q=7 ANSWER FOR THE NUMBER OF QUARTERS \n" ); document.write( "D=2*7-3 \n" ); document.write( "D=14-3 \n" ); document.write( "D=11 ANSWER FOR THE NUMBER OF DIMES \n" ); document.write( "PROOF \n" ); document.write( "10*11=7*25=285 \n" ); document.write( "110+175=285 \n" ); document.write( "285=285 \n" ); document.write( " \n" ); document.write( " |