David drove 200 miles using 9 gallons of gas. At this rate, how many gallons of gas would he need to drive 420 miles?
Added by M-Nica B.
Step 1
To find the rate of gas consumption per mile, divide the number of miles driven by the number of gallons of gas used. Rate of gas consumption per mile = 200 miles / 9 gallons = 22.22 miles/gallon Show more…
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