document.write( "Question 987143: A coin bank contains twice as many nickels as quarters. four times as many pennies as quarters and no dimes. If the bank contains $7.60 how many coins does it contain? \n" ); document.write( "
Algebra.Com's Answer #608216 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "Q=number of quarters; N=number of nickels=2Q; P=number of pennies=4Q \n" ); document.write( ". \n" ); document.write( "$0.25Q+$0.05N+$0.01P=$7.60 \n" ); document.write( "$0.25Q+$0.05(2Q)+$0.01(4Q)=$7.60 \n" ); document.write( "$0.25Q+$0.10Q+$0.04Q=$7.60 \n" ); document.write( "$0.39Q=$7.60 \n" ); document.write( "For every quarter, there are two nickels and 4 pennies, so the total must be a multiple of 39 cents. $7.60 is not evenly divisible by 39 cents, so there is no solution for this problem. \n" ); document.write( " |