document.write( "Question 1008505: Mike has $28.05 in dimes and quarters. The number of dimes is 3 times the number of quarters. Write a system of linear equations to find how many dimes and quarters there are. \n" ); document.write( "
Algebra.Com's Answer #628457 by macston(5194) You can put this solution on YOUR website! . \n" ); document.write( "D=dimes=3Q; Q=quarters \n" ); document.write( ". \n" ); document.write( "$0.10D+$0.25Q=$28.05 \n" ); document.write( "$0.10(3Q)+$0.25Q=$28.05 \n" ); document.write( "$0.30Q+$0.25Q=$28.05 \n" ); document.write( "$0.55Q=$28.05 \n" ); document.write( "Q=51 \n" ); document.write( "ANSWER 1: Mike has 51 quarters. \n" ); document.write( ". \n" ); document.write( "D=3Q=3(51)=153 \n" ); document.write( "ANSWER 2: Mike has 153 dimes. \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( ". \n" ); document.write( "$0.10D+$0.25Q=$28.05 \n" ); document.write( "$0.10(153)+$0.25(51)=$28.05 \n" ); document.write( "$15.30+$12.75=$28.05 \n" ); document.write( "$28.05=$28.05 \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( " |