document.write( "Question 992579: Elizabeth had 3 times the number of quarters (25 cents) in her bag than dimes (10 cents).\r
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document.write( "a. If she had a total of 72 coins, how many of them were quarters?\r
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document.write( "b. What was the total dollar value of these coins?
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Algebra.Com's Answer #612178 by macston(5194) You can put this solution on YOUR website! . \n" ); document.write( "D=number of dimes; Q=number of quarters=3D; T=total value \n" ); document.write( ". \n" ); document.write( "D+Q=72 \n" ); document.write( "D+3D=72 \n" ); document.write( "4D=72 \n" ); document.write( "D=18 \n" ); document.write( "There were 18 dimes \n" ); document.write( "Q=3D=3(18)=54 \n" ); document.write( "ANSWER (a): There were 54 quarters. \n" ); document.write( ". \n" ); document.write( "T=$0.10(D)+$0.25(Q) \n" ); document.write( "T=$0.10(18)+$0.25(54) \n" ); document.write( "T=$1.80+$13.50 \n" ); document.write( "T=$15.30 \n" ); document.write( "ANSWER (b): The value of the coins was $15.30 \n" ); document.write( " |