document.write( "Question 1207775: Therese, an outside salesperson, uses her car for both business and pleasure. Last year, she traveled 30,000 miles, using 900 gallons of gasoline. Her car gets 40 miles per gallon on the highway and 25 in the city. She can deduct all highway travel,but no city travel, on her taxes. How many miles should Therese be allowed as a business expense?\r
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Algebra.Com's Answer #845847 by josgarithmetic(39617) $\"\"$ $\"About$

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\n" ); document.write( "Question only asks about distance traveled on highway; the highway travel distance
\n" ); document.write( "is what can be \"deducted\" for tax.\r
\n" ); document.write( "\n" ); document.write( "R, fuel efficiency
\n" ); document.write( "V, volume of fuel, gallons
\n" ); document.write( "D, distance
\n" ); document.write( "RV=D basic rule\r
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\n" ); document.write( "\n" ); document.write( "If distance on highway was x,
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document.write( "ROAD        FUEL EFF.       VOL.fuel         DISTANCE\r\n" );
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document.write( "HIGWAY      40             x/40                x\r\n" );
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document.write( "CITY        25             (30000-x)/25       30000-x\r\n" );
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document.write( "Total                       900              30000\r\n" );
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\n" ); document.write( "See the useful equation is sum of the volumes.\r
\n" ); document.write( "\n" ); document.write( " $\"x%2F40%2B%2830000-x%29%2F25=900\"$ ----------simplify and solve for x. \n" ); document.write( "

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