Roselyn is driving to visit her family, who live 150 kilometers away. Her average speed is 60 kilometers per hour. The car's tank has 20 liters of fuel at the beginning of the drive, and its fuel efficiency is 6 kilometers per liter. Fuel costs .6 dollars per liter. What is the price for the amount of fuel that Roselyn will use for the entire drive?
Q. Roselyn is driving to visit her family, who live 150 kilometers away. Her average speed is 60 kilometers per hour. The car's tank has 20 liters of fuel at the beginning of the drive, and its fuel efficiency is 6 kilometers per liter. Fuel costs .6 dollars per liter. What is the price for the amount of fuel that Roselyn will use for the entire drive?
Calculate Fuel Needed: Calculate the total amount of fuel needed for the drive. Roselyn's car has a fuel efficiency of 6 kilometers per liter, and she needs to drive 150 kilometers. To find out how many liters of fuel she will use, divide the total distance by the fuel efficiency. 150 kilometers ÷6 kilometers per liter =25 liters
Calculate Fuel Cost: Calculate the cost of the fuel used for the drive.The cost of fuel is 0.6 dollars per liter. Since Roselyn will use 25 liters for the entire drive, multiply the amount of fuel by the cost per liter to find the total cost.25 liters ×0.6 dollars per liter = 15 dollars
More problems from Evaluate variable expressions: word problems