ethanp2007
contestada

A hybrid car can get 54 mpg when traveling at an average speed of 30 mph. You travel in this car at that speed for 45 miles to your grandparents’ house. Gas at your nearest station cost $3.23. Use this information to complete the statements. It will take________ Hours to get to your grandparents’ house. Your car will use______gallons of gas on the trip. You will spend________on gas for the trip.

Respuesta :

sqdancefan

Given

  • the car's mileage is 54 mpg
  • the car's speed is 30 mph
  • the distance traveled is 45 mi
  • the cost of gas is $3.23/gal

Find

  • the time for the trip
  • gallons of gas used
  • cost of gas for the trip

Solution

A) The time to travel 45 miles at a speed of 30 mph can be found from ...

... time = distance / speed

... time = (45 mi)/(30 mi/h) = 3/2 h = 1 hr 30 min

B) The gas consumption can be found from ...

... (45 mi)/(54 mi/gal) = 5/6 gal

C) The cost of gas can be found from ...

... ($3.23/gal)×(5/6 gal) ≈ $2.69