document.write( "Question 831511: A salesperson purchased an automobile that was advertised as averaging 27 mi/gal in the city and 38 mi/gal on the highway. A recent sales trip that covered 1978 miles required 59 gallons of gasoline. Assuming that the advertised mileage estimates were correct, how many miles were driven in the city? \n" ); document.write( "
Algebra.Com's Answer #501427 by josgarithmetic(39618)\"\" \"About 
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Uniform rates, fuel efficiency a rate.\r
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\n" ); document.write( "\n" ); document.write( "Let R= fuel efficiency, miles per gallon.
\n" ); document.write( "v volume and m d distance;
\n" ); document.write( "\"highlight_green%28Rv=d%29\"\r
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\n" ); document.write( "\n" ); document.write( "_____________rate______________volume___________distance
\n" ); document.write( "City_________27_________________x_______________27x
\n" ); document.write( "Highway______38_________________y_______________38y
\n" ); document.write( "Total___________________________59_____________1978\r
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\n" ); document.write( "\n" ); document.write( "Make the two equations and solve for x and y.
\n" ); document.write( "Compute the distances.
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