A deep sea diving bell is being lowered at a constant rate. After 12 minutes, the bell is at a depth of 600 feet. After 35 minutes the bell is at a depth of 1900 feet. What is the average rate of lowering per
Minute?
A)56.5 ft per minute
B)0.02 ft per minute
C)54.3 ft per minute
D)37.1 ft per minute

Question

Quizplus · Accepted Answer

The average rate of lowering per minute can be calculated by dividing the total depth change by the total time change. From 12 to 35 minutes, the depth changes from 600 feet to 1900 feet, a change of 1300 feet over 23 minutes. $ \frac{1300 \text{ feet}}{23 \text{ minutes}} = 56.5 \text{ ft per minute} $.

A Deep Sea Diving Bell Is Being Lowered at a Constant