Question

To the nearest tenth of a mile per hour, what is the pontoon's average speed in still water?

Responses

A.4.0 miles per hour


B.5.0 miles per hour



C.5.2 miles per hour



D.5.7 miles per hour

Answer 1

The answer is b 5.0 miles per hour

Answer 2

Explanation:

We can use the formula:

average speed = (speed downstream + speed upstream) / 2

We are given the speed downstream is 8 miles per hour and the speed upstream is 2 miles per hour. Therefore,

average speed = (8 + 2) / 2 = 5 miles per hour

So the answer is (B) 5.0 miles per hour to the nearest tenth.