Question 1197415
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The solution method shown by the other tutor is valid; a student should understand how and why.  But that method is awkward and likely confusing to many students.<br>
I would treat this as a direct variation problem: the number of gallons of gas needed increases by the same factor as the number of miles:<br>
{{{6*(901/318)=901/53=17}}}<br>
ANSWER: 17 gallons<br>