document.write( "Question 849592: It took Jeremy 8.5 gallons of gas to drive 250 miles. Assuming that he gets the same mileage per gallon , then how much will he need to travel 400 miles? \n" ); document.write( "
Algebra.Com's Answer #511646 by lexi3651025(1)\"\" \"About 
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This is a ratio problem.
\n" ); document.write( " Step 1: Set up a proportion
\n" ); document.write( " # of gallons over # of miles = # of gallons over # of miles
\n" ); document.write( " 8.5 / 250 = x / 400
\n" ); document.write( " Step 2: Cross multiply
\n" ); document.write( " 8.5(400) = 250(x)
\n" ); document.write( " 3400 = 250x
\n" ); document.write( " Step 3: Solve for x
\n" ); document.write( " 3400 / 250 = 250x / 250
\n" ); document.write( " 13.6 = x or x = 13.6
\n" ); document.write( "x is the number of gallons it would take for Jeremy to drive 400 miles
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