Answer :
The average speed is the distance divided by the time.
Total distance:
12.8 miles + 17.2 miles = 30 miles
Total time:
noon - 9:00 a.m. = 3 hours
6:00 p.m. - 1:00 p.m. = 5 hours
Total time = 3 hours + 5 hours = 8 hours
average speed = 30 miles / 8 hours = 3.75 miles per hour
Total distance:
12.8 miles + 17.2 miles = 30 miles
Total time:
noon - 9:00 a.m. = 3 hours
6:00 p.m. - 1:00 p.m. = 5 hours
Total time = 3 hours + 5 hours = 8 hours
average speed = 30 miles / 8 hours = 3.75 miles per hour
Average rate for the entire walk, in miles per hour is the division of total miles walked by total time.
His average rate for the entire walk, in miles per hour is 3.75 miles per hour
Given:
Distance 1 = 12.8 miles
Distance 2 = 17.2 miles
Total distance = Distance 1 + Distance 2
= 12.8 + 17.2
= 30 miles
Time 1 = 9:00 a.m. to noon = 3 hours
Time 2 = 1:00 p.m. to 6:00 p.m = 5 hours
Total time = Time 1 + Time 2
= 3 + 5
= 8 hours
Average rate worked = Total distance ÷ Total time
= 30 miles ÷ 8 hours
= 3.75 miles per hour
Therefore, his average rate for the entire walk, in miles per hour is 3.75 miles per hour
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