document.write( "Question 1031350: The teller has a total of 30 bills 1's, 5's and 20's. The 20's are 9 more than the number of 1's. Total value of the money is $351. How many of each denomination are in the cash drawer. \n" ); document.write( "
Algebra.Com's Answer #646119 by Fombitz(32388)\"\" \"About 
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X-number of ones
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\n" ); document.write( "Z-number of twenties
\n" ); document.write( "1.\"X%2BY%2BZ=30\"
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\n" ); document.write( "\"Z=9%2BX\"
\n" ); document.write( "2.\"-X%2BZ=9\"
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\n" ); document.write( "3.\"X%2B5Y%2B20Z=351\"
\n" ); document.write( "Use Cramer's rule,
\n" ); document.write( "\"A=%28matrix%283%2C3%2C%0D%0A1%2C1%2C1%2C%0D%0A-1%2C0%2C1%2C%0D%0A1%2C5%2C20%29%29\"
\n" ); document.write( "\"abs%28A%29=11\"
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\n" ); document.write( "\"A%5BX%5D=%28matrix%283%2C3%2C%0D%0A30%2C1%2C1%2C%0D%0A9%2C0%2C1%2C%0D%0A351%2C5%2C20%29%29\"
\n" ); document.write( "\"abs%28A%5BX%5D%29=66\"
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\n" ); document.write( "\"A%5BY%5D=%28matrix%283%2C3%2C%0D%0A1%2C30%2C1%2C%0D%0A-1%2C9%2C1%2C%0D%0A1%2C351%2C20%29%29\"
\n" ); document.write( "\"abs%28A%5BY%5D%29=99\"
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\n" ); document.write( "\"A%5BZ%5D=%28matrix%283%2C3%2C%0D%0A1%2C1%2C30%2C%0D%0A-1%2C0%2C9%2C%0D%0A1%2C5%2C351%29%29\"
\n" ); document.write( "\"abs%28A%5BZ%5D%29=165\"
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\n" ); document.write( "\"X=abs%28A%5BX%5D%29%2Fabs%28A%29=66%2F11=6\"
\n" ); document.write( "\"Y=abs%28A%5BY%5D%29%2Fabs%28A%29=99%2F11=9\"
\n" ); document.write( "\"Z=abs%28A%5BZ%5D%29%2Fabs%28A%29=165%2F11=15\"
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