Question

Victoria is at an elevation of 150 feet. She hikes down to an elevation of 120 feet in 40 minutes. Then she hikes down to an elevation of 100 feet in 30 minutes.
Part A. What is her average rate of descent, in feet per minute, from 150 feet to 120 feet?

Answer 1

Answer:

0.75 ft/min

Step-by-step explanation:

Victoria is at an elevation of 150 feet. She hikes down to an elevation of 120 feet in 40 minutes. Then she hikes down to an elevation of 100 feet in 30 minutes.

Part A. What is her average rate of descent, in feet per minute, from 150 feet to 120 feet?

Distance covered = 150 - 120 = 30 ft

Time Taken = 40 mins

Speed = 30ft/40 = 3/4 = 0.75 ft/min

Next 20 ft covered in 30 min

then speed = 20/30 = 2/3 ft/min

total distance = 50 ft

time = 70 min

Average speed = 50/70 = 5/7 ft/min

Answer 2

Answer:40

Step-by-step explanation: