alaneagriffith12
contestada

A car traveled 60 km in two hours, 84 km in the next one hour, and then 68 km in two hours before reaching its destination. What was the cars average speed? Rounded to the nearest whole number.
A. 212 km/HR
B. 42 km/HR
C. 148 km/HR
D.1060 km/HR

Respuesta :

MissPhiladelphia
The average speed of an object is defined as the distance traveled divided by the time elapsed. I believe the correct answer from the choices listed above is option B. The car's average speed would be 42 km/hr.

average speed = 60+84+68 / 5 = 42.4 km/hr
Lanuel

The car's average speed to the nearest whole number is 42 km/hr.

Given the following data:

  • Distance A = 60 km.
  • Distance B = 84 km.
  • Distance C = 68 km.
  • Time A = 2 hours.
  • Time B = 1 hour.
  • Time C = 2 hours.

To determine the car's average speed to the nearest whole number:

What is average speed?

An average speed can be defined as the total distance covered by an object divided by the total time taken.

How to calculate average speed.

Mathematically, average speed is given by this formula:

[tex]Average \;speed=\frac{Total\;distance}{Total\;time}[/tex]

Substituting the given parameters into the formula, we have:

[tex]Average \;speed=\frac{60\;+\;84\;+\;68}{2\;+\;1\;+\;2}\\\\Average \;speed=\frac{212}{5}[/tex]

Average speed = 42.4 ≈ 42 km/hr.

Read more on average speed here: https://brainly.com/question/6504879

Otras preguntas