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4 November, 05:25

Heather drove 405 miles using 20 gallons of gas. At this rate, how many gallons of gas would she need to drive 243 miles?

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Answers (2)
  1. 4 November, 05:50
    0
    12 gallons

    Step-by-step explanation:

    Miles: gallons

    405 : 20

    243 : X

    X/243 = 20/405

    X = 243 * 20/405

    X = 12
  2. 4 November, 07:33
    0
    12 (gallon)

    Step-by-step explanation:

    x = 20 x 243/405 = 12
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