document.write( "Question 1004580: A motel clerk counts his $1 and $10 bills at the end of the day. He finds that he has a total of 64 bills having a combined monetary value of $199. Find the number of bills of each denomination that he has. \n" ); document.write( "
Algebra.Com's Answer #621023 by addingup(3677)\"\" \"About 
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x+y= 64; y= 64-x
\n" ); document.write( "1x+10y= 199 Substitute for y:
\n" ); document.write( "1x+10(64-x)= 199
\n" ); document.write( "1x+640-10x= 199
\n" ); document.write( "-9x= -441
\n" ); document.write( "x= -441/-9
\n" ); document.write( "x= 49
\n" ); document.write( "He has 49 $1 bills and 64-49= 15 $10 bills
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