document.write( "Question 810502: At a local bank Wanda received $10 bills and $20 bills in exchange for $100 bill. She received a total of 8 bills. How many $10 bills did she receive? \n" ); document.write( "
Algebra.Com's Answer #488203 by richwmiller(17219)\"\" \"About 
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n+y=8,
\n" ); document.write( "10n+20y=100
\n" ); document.write( "n = 6, y = 2
\n" ); document.write( "6 tens and 2 twenties
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