document.write( "Question 118464: scott spent one ninth of his allowance on newspaper, and two fifths of his allowance on a snack. if he has $2.20 left, how much does he get for an allowance? \n" ); document.write( "
Algebra.Com's Answer #86592 by solver91311(24713)\"\" \"About 
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Let's say that Scott gets x cents for his allowance. We know he spent \"x%2F9\" cents on the newspaper, \"2x%2F5\" cents on the snack, and he has 220 cents remaining. Assuming no additional purchases or expenditures, these three amounts must add up to his total allowance, or:\r
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\n" ); document.write( "\n" ); document.write( "\"%28x%2F9%29%2B%282x%2F5%29%2B220=x\"\r
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\n" ); document.write( "\n" ); document.write( "\"%285x%2F45%29%2B%2818x%2F45%29-%2845x%2F45%29=-220\"\r
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\n" ); document.write( "\n" ); document.write( "\"-22x%2F45=-220\"\r
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\n" ); document.write( "\n" ); document.write( "\"x%2F45=10\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=450\" cents, or $4.50.\r
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\n" ); document.write( "\n" ); document.write( "Check your answer:\r
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\n" ); document.write( "\n" ); document.write( "One-ninth of $4.50 is $0.50. Two-fifths of $4.50 is $1.80.\r
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\n" ); document.write( "\n" ); document.write( "$0.50 + $1.80 = $2.30 and $4.50 - $2.30 = $2.20.
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