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n which situation did the car achieve the greatest efficiency? (Assume the cars all have the same mass.)(1 point)

Responses

a car that traveled 80 kilometers on 5.0 liters of gas
a car that traveled 80 kilometers on 5.0 liters of gas

a car that traveled 70 kilometers on 5.0 liters of gas
a car that traveled 70 kilometers on 5.0 liters of gas

a car that traveled 90 kilometers on 6.0 liters of gas
a car that traveled 90 kilometers on 6.0 liters of gas

a car that traveled 50 kilometers on 4.0 liters of gas

1 answer

To determine which car achieved the greatest efficiency, we need to calculate the efficiency (in kilometers per liter) for each car:

  1. Car A: Traveled 80 kilometers on 5.0 liters.

    • Efficiency = 80 km / 5.0 L = 16 km/L

  2. Car B: Traveled 70 kilometers on 5.0 liters.

    • Efficiency = 70 km / 5.0 L = 14 km/L

  3. Car C: Traveled 90 kilometers on 6.0 liters.

    • Efficiency = 90 km / 6.0 L = 15 km/L

  4. Car D: Traveled 50 kilometers on 4.0 liters.

    • Efficiency = 50 km / 4.0 L = 12.5 km/L

Now we compare the efficiencies:

  • Car A: 16 km/L
  • Car B: 14 km/L
  • Car C: 15 km/L
  • Car D: 12.5 km/L

The car that achieved the greatest efficiency is Car A, which traveled 80 kilometers on 5.0 liters of gas, with an efficiency of 16 km/L.