Question

What is the unit rate in this proportional relationship?

Family Road Trips:
Number of Miles Number of Hours
420 10
360 117
300 180
A.60miles/1 hour
B. 120miles/2 hours
C.80miles/1 hour
D. 60miles/3 hours

Answer 1

The unit rate in this proportional relationship is 80 miles per hour.

Step-by-step explanation:

The unit rate in this proportional relationship is 80 miles per hour. This can be calculated by dividing the number of miles by the number of hours for each given pair. For example, the first pair is 420 miles and 10 hours, so the unit rate is 420 miles / 10 hours = 80 miles per hour. Similarly, the unit rates for the other pairs can be calculated as follows:

1. 360 miles / 11 hours = 32.73 miles per hour
2. 7300 miles / 180 hours = 40.56 miles per hour

Therefore, the correct answer is 80miles/1 hour (option C).