asked 1.3k views
5 votes
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?

2 Answers

7 votes
First Step:Round 28 which is 30
Second Step:Add 200+220=420
Third Step:Divide 30 into 420 =14
answered
User Easter
by
7.8k points
3 votes
Cross multiply 28miles/gallon = 420 miles/x x = 15 gallons
answered
User Akkie
by
8.6k points
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