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29 October, 01:12

Marisa's car gets an average of 28 miles per gallon of gas. she plans to drive 200 miles today and 220 miles tomorrow. how many gallons of gas should she expect to use in all?

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  1. 29 October, 01:24
    0
    First Step:Round 28 which is 30

    Second Step:Add 200+220=420

    Third Step:Divide 30 into 420 = 14
  2. 29 October, 01:38
    0
    Cross multiply 28miles/gallon = 420 miles/x x = 15 gallons
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