Answer:
Their average speed is 18 miles per hour
Step-by-step explanation:
First off find out how long 2hrs and 30mins is in minutes:
60 mins per hour x 2 hours = 120 minutes
120 minutes + 30 minutes = 150 minutes total
He traveled 45 miles in 150 minutes.
Next divide 150 minutes by 60
150 minutes / 60 minutes = 2.5 rate
This means you have to now divide 45 miles by 2.5 as that's the rate
45 miles / 2.5 = 18 miles per 1 hour (60 minutes)
