Question

2. Ignacio is going on vacation. He needs to drive 479 miles in 7 hours. What is his average speed in miles per

hour?
a. 71 miles per hour
c. 66 miles per hour
b. 64 miles per hour
d. 60 miles per hour

Answer 1

`68\ miles\ per\ hour`

Explanation:

Remember that

The speed is equal to divide the distance by the time

To find out the average speed or unit rate, divide the total distance by the total time

Let

x -----> the distance in miles

y ----> the time in hours

so

The average speed is x/y

substitute the values

`(479)/(7)\ (miles)/(hours)=68\ miles\ per\ hour`