Question

A scuba diver descends farther down into the ocean from an initial depth of 14.7 feet below sea level. The scuba diver descends at a constant rate for 4 1/2 minutes and reaches a depth no more than 65.1 feet below sea level. What is the maximum rate, r, that the scuba diver may descend? r≥11.2 r≤17 11/15 r≥17 11/15 r≤11.2

Answer 1

The maximum rate, r, that the scuba diver may descend is r≤ 11.2

Given the following parameters:

• Initial length = 14.7feet

• Time = 4.5 minutes

• Rate  = distance/time

If the scuba diver reaches a depth no more than 65.1 feet below sea level, then;

r ≤ (65.1 - 14.7)/4.5

r≤ 50.4/4.5

r≤ 11.2

Hence the maximum rate, r, that the scuba diver may descend is r≤ 11.2

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