document.write( "Question 996860: part of the proceeds from a garage sale was 290 worth of $5 and $20 bills, if there were 3 more $5 bills than $20 bills. find the number of each denomination \n" ); document.write( "
Algebra.Com's Answer #615254 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! Let x = # of $5 bills. \n" ); document.write( "Let y = # of $20 bills. \n" ); document.write( "The value equation is \n" ); document.write( "5x + 20y = 290 \n" ); document.write( "The other equation is \n" ); document.write( "x = y + 3 \n" ); document.write( "Substituting this into the first equation gives \n" ); document.write( "5(y + 3) + 20y = 290 \n" ); document.write( "5y + 15 + 20y = 290 \n" ); document.write( "25y = 275 \n" ); document.write( "y = 11 \n" ); document.write( "x = 14 \n" ); document.write( " |