document.write( "Question 957719: Question: How many coins are there of each type? \r
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document.write( "What I know:
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document.write( "They are only pennies and quarters.
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document.write( "The coins are worth $62.00.
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document.write( "There are 1,400 coins in all. \n" );
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Algebra.Com's Answer #585259 by macston(5194)![]() ![]() You can put this solution on YOUR website! P=pennies; Q=quarters \n" ); document.write( "P+Q=1400 \n" ); document.write( "P=1400-Q \n" ); document.write( "$0.01P+$0.25Q=$62.00 Substitute for P. \n" ); document.write( "$0.01(1400-Q)+$0.25Q=$62.00 \n" ); document.write( "$14.00-$0.01Q+$0.25Q=$62.00 Subtract $14.00 from each side. \n" ); document.write( "$0.24Q=$48.00 Divide each side by $0.24. \n" ); document.write( "Q=200 ANSWER 1: There are 200 quarters. \n" ); document.write( "P=1400-Q=1400-200=1200 ANSWER 2: There are 1200 pennies. \n" ); document.write( "CHECK: \n" ); document.write( "$0.01P+$0.25Q=$62.00 \n" ); document.write( "$0.01(1200)+$0.25(200)=$62.00 \n" ); document.write( "$12.00+$50.00=$62.00 \n" ); document.write( "$62.00=$62.00 \n" ); document.write( " |