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)![]() ![]() ![]() You can put this solution on YOUR website! Uniform rates, fuel efficiency a rate.\r \n" ); document.write( " \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( " \n" ); document.write( " \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 \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Make the two equations and solve for x and y. \n" ); document.write( "Compute the distances. \n" ); document.write( " |