Answer:
See below
Step-by-step explanation:
20. 15 miles per hour and 1320 feet per minute
330 feet per 15 seconds. Use conversions to find feet per minute then miles per hour.
330 ft 60 sec
---------- x --------------- =
15 sec 1 min
330 x 60 / 15 or 19800/15 is 1320 ft/min
Since you now know 330ft/sec is the same as 1320 ft/min, convert that to miles per hour.
1320 ft 60 min 1 mile miles
----------- x ------------- x --------------- = ----------------
min 1 hour 5280 ft hour
1320 x 60 / 5280 = 15 miles/hour
21. Convert all to miles per hour
cheetah
3080 ft 60 sec 60 min 1 mile
---------- x ---------- x ------------ x ------------ = 70 mph
30 sec 1 min 1 hour 5280 ft
elk
2970 ft 60 sec 60 min 1 mile
----------- x ----------- x ----------- x ----------- = 45 mph
45 sec 1 min 1 hour 5280 ft
lion
4400 ft 60 sec 60 min 1 mile
----------- x ------------ x ---------- x ----------- = 50 mph
60 sec 1 min 1 hour 5280 ft
quarter horse
6050 ft 60 sec 60 min 1 mile
----------- x ----------- x ------------- x ----------- = 55 mph
75 sec 1 min 1 hour 5280 ft
Cheetah has fastest rate of speed
