Advanced Placement (AP)

Question

Serena is considering buying a more fuel-efficient car to decrease her gasoline usage. Her current car gets 23 miles per gallon (mpg) on the highway and 15 mpg in the city, where she lives and works. In a typical week, Serena drives about 25 miles going to and from work and running errands. Every Sunday she drives to see her parents, who live 35 miles away by highway.

What is the the total gasoline (in gallons) that Serena uses in a typical week?

2 Answer

  • To determine the total amount in volume of gasoline used by Serena in a week, we need the data on the distance she drive per week and the any value relating to the amount of gasoline used. We calculate as follows:

    25 miles / 15 miles per gallon + 35 miles / 23 miles per gallon  = 3.19 gallon of gasoline used per week
  • Hello there.

    Serena is considering buying a more fuel-efficient car to decrease her gasoline usage. Her current car gets 23 miles per gallon (mpg) on the highway and 15 mpg in the city, where she lives and works. In a typical week, Serena drives about 25 miles going to and from work and running errands. Every Sunday she drives to see her parents, who live 35 miles away by highway.

    What is the the total gasoline (in gallons) that Serena uses in a typical week?

     3.19 gallon of gasoline used per week

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