document.write( "Question 182313: Every week, a grocery store buys 30 gallons of milk as a cost of $1.58 per gallon. The store owner anticipates a 15% spoilage rate. In order to achieve a 20% markup based on selling price, what should be the selling price per gallon rounded to the nearest cent? \n" ); document.write( "
Algebra.Com's Answer #136844 by Mathtut(3670)\"\" \"About 
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30(.15)=4.5 gallons of spoilage
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\n" ); document.write( "30-6=25.5....number of gallons that can be sold due to spoilage
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\n" ); document.write( "cost is 30 * 1.58 = $47.4
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\n" ); document.write( "markup is 47.4+47.4(.2)=47.4+5.48= 52.88.....this is the markup amount at 20% markup
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\n" ); document.write( "so now we need to divide the markup by the number of gallons we can sell to find out price per gallon
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\n" ); document.write( "52.88/25.5=$2.07/gal
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