5. A blue whale calf swam from Miami, Florida, to Havana, Cuba, a distance of 228 miles, in 12 hours 22 minutes. Which is closest to the calf's average rate of speed, in feet per hour?
Mathematics · Middle School · Tue Nov 03 2020
Answered on
Given:
Distance traveled by the blue whale calf = 228 miles
Time = 12 hours 22 minutes
Determine the average rate of speed in feet per hour.
Solution:
Convert first the given unit of distance which is mile to feet and time to hour.
1 mile = 5280 ft
= (5280)(228)
= 1,203,840 ft
12 hours and 22 minutes
=22/60
= 0.37
= 12 + 0.37
= 12.37 hours
Formula for the average rate of speed:
Vave = change in distance/change in time.
Vave =1,203,840 ft/12.37 hours
Vave =97,319.32 ft/hr
Final answer:
Vave =97,319.32 ft/hr