document.write( "Question 958582: The number of quarters that Tina has is 3 times the number of nickels. She has $5.60 in all. How many coins of each type does she have? \n" ); document.write( "
Algebra.Com's Answer #585884 by macston(5194)![]() ![]() You can put this solution on YOUR website! N=nickels; Q=quarters=3N \n" ); document.write( "$0.05N+$0.25Q=$5.60 Substitute for Q. \n" ); document.write( "$0.05N+$0.25(3N)=$5.60 \n" ); document.write( "$0.05N+$0.75N=$5.60 \n" ); document.write( "$0.80N=$5.60 Divide each side by $0.80. \n" ); document.write( "N=7 ANSWER 1: There are 7 nickels \n" ); document.write( "Q=3N=3(7)=21 ANSWER 2: There are 21 quarters. \n" ); document.write( "CHECK: \n" ); document.write( "$0.05N+$0.25Q=$5.60 \n" ); document.write( "$0.05(7)+$0.25(21)=$5.60 \n" ); document.write( "$0.35+$5.25=$5.60 \n" ); document.write( "$5.60=$5.60 \n" ); document.write( " |