Question

A car travels 42 miles at a constant speed in 3/4 of an hour. At this speed, how many miles would it travel in 1 hour?

A) 56 miles
B) 56.25 miles
C) 56.5 miles
D) 57 miles

Answer 1

The car travels at a speed of 56 miles per hour. Given it travels 42 miles in 3/4 of an hour, multiplying this by 4/3 gives the distance traveled in one full hour: 56 miles.

Step-by-step explanation:

The question requires us to calculate the distance that the car would travel in one hour based on the distance it travels in three-fourths of an hour. To find the average speed of the car, we can use the formula:

average speed = distance / time

If a car travels 42 miles in 3/4 of an hour, we can find its average speed as follows:

average speed = 42 miles / (3/4 hours) = 42 miles / 0.75 hours = 56 miles per hour

Now that we know the car travels at 56 miles per hour, we can determine that in one hour, the car would travel 56 miles. Therefore, the correct answer is A) 56 miles.