document.write( "Question 973114: you have a jar of coins containing nickels and quarters worth $1.55. The money jar contains 11 coins. Find out how many coins of each type you have using a system of equations. \n" ); document.write( "
Algebra.Com's Answer #595364 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "N=nickels; Q=quarters \n" ); document.write( "N+Q=11 \n" ); document.write( "N=11-Q Use this to substitute for N. \n" ); document.write( ". \n" ); document.write( "$0.05N+$0.25Q=$1.55 Substitute for N. \n" ); document.write( "$0.05(11-Q)+$0.25Q=$1.55 \n" ); document.write( "$0.55-$0.05+$0.25Q=$1.55 \n" ); document.write( "$0.20Q=$1.00 \n" ); document.write( "Q=5 ANSWER 1: There are 5 quarters. \n" ); document.write( "N=11-Q=11-5=6 ANSWER 2: There are 6 nickels. \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( "$0.05N+$0.25Q=$1.55 \n" ); document.write( "$0.05(6)+$0.25(5)=$1.55 \n" ); document.write( "$0.30+$1.25=$1.55 \n" ); document.write( "$1.55=$1.55 \n" ); document.write( " \n" ); document.write( " |