document.write( "Question 984645: You have 73 coins consisting of nickels and pennies. the coins total $3.25. How many coins are nickels ? how many coins are pennies? \n" ); document.write( "
Algebra.Com's Answer #605428 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "N=number of nickels; P=number of pennies \n" ); document.write( ". \n" ); document.write( "N+P=73 \n" ); document.write( "P=73-N \n" ); document.write( ". \n" ); document.write( "$0.01P+$0.05N=$3.25 \n" ); document.write( "$0.01(73-N)+$0.05N=$3.25 \n" ); document.write( "$0.73-$0.1N+$0.05N=$3.25 \n" ); document.write( "$0.04N=$2.52 \n" ); document.write( "N=63 ANSWER 1: There are 63 nickels. \n" ); document.write( "P=73-N=73-63=10 ANSWER 2: There are 10 pennies. \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( "$0.01P+$0.05N=$3.25 \n" ); document.write( "$0.01(10)+$0.05(63)=$3.25 \n" ); document.write( "$0.10+$3.15=$3.25 \n" ); document.write( "$3.25=$3.25 \n" ); document.write( " \n" ); document.write( " |