Question

During a family car trip, a family travels for 1 hour at 70 miles per hour. Then the family travel for 2 more hours at 55 miles per hour. What is the family's average speed during the trip?

Answer 1

The family travelled 180 miles for 3 hours with an average speed of 60mph.

Step-by-step explanation:

We are given the formula; speed x time = distance.

First, we find that 70 x 1 = 70.

then, we find that 55 x 2 = 110

the family travelled (110 + 70) or 180 Miles.

Now, we use the formula to find average speed; Average Speed = Total Distance Traveled ÷ Total Time Taken

2 hours + 1 hour = 3 hours.

180 miles (distance) / 3 hours (time) = 60 miles/hour.

The family travelled 180 miles for 3 hours with an average speed of 60mph.