document.write( "Question 302313: A cash register has 43 bills, all of them 5 dollar and 1 dollar bills. The combined monetary value of the bills is $167. Find the number of each denomination. \n" ); document.write( "
Algebra.Com's Answer #216831 by ankor@dixie-net.com(22740)\"\" \"About 
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let x = no. of $5 bills
\n" ); document.write( "Let y = no. of $1 bills
\n" ); document.write( ":
\n" ); document.write( "A cash register has 43 bills, all of them 5 dollar and 1 dollar bills.
\n" ); document.write( "x + y = 43
\n" ); document.write( ":
\n" ); document.write( "The combined monetary value of the bills is $167.
\n" ); document.write( "5x + 1y = 167
\n" ); document.write( ":
\n" ); document.write( "Find the number of each denomination.
\n" ); document.write( "Subtract the 1st equation from the 2nd equation
\n" ); document.write( "5x + y = 167
\n" ); document.write( " x + y = 43
\n" ); document.write( "-----------------Subtraction eliminates y find x
\n" ); document.write( "4x = 124
\n" ); document.write( "x = \"124%2F4\"
\n" ); document.write( "x = 31 ea $5 bills
\n" ); document.write( "Find y
\n" ); document.write( "31 + y = 43
\n" ); document.write( "y = 43 - 31
\n" ); document.write( "y = 12 ea $1 bills
\n" ); document.write( ":
\n" ); document.write( "Check in the total$ equation
\n" ); document.write( "5(31) + 12 = 167
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