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andrea drove 200 miles using 9 gallons of gas. At this rate, how many gallons of gas would she need to drive 420 miles?

User Yiwen
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Given : Andre drove 200 Miles using 9 Gallons of Gas

⇒ Andre drives 1 Mile using
[(9)/(200)]\;Gallons\;of\;Gas

⇒ Andre drives (420 × 1 Mile) using
[(420*9)/(200)]\;Gallons\;of\;Gas

⇒ Andre drives 420 Miles using 18.9 Gallons of Gas

User Loicmathieu
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