document.write( "Question 971267: Susan drove 200 miles using 9 gallons of gas. At this rate, how many gallons of gas would she need to drive 420 miles \n" ); document.write( "
Algebra.Com's Answer #593834 by checkley77(12844)\"\" \"About 
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200/9=420/X
\n" ); document.write( "200X=9*420
\n" ); document.write( "200X=3780
\n" ); document.write( "X=3780/200
\n" ); document.write( "X=18.9 GAL.
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