Question

A dolphin can swim at a constant speed of 12.5 m/s. How

long does it take a dolphin to swim 45 meters?

Answer 1

Answer:3.6 seconds

Explanation: 45/12.5 m/s is 3.6s

Answer 2

`\boxed {\tt 3.6 \ seconds}`

Step-by-step explanation:

Time can be found by dividing the distance by the speed.

`t=(d)/(s)`

The distance is 45 meters and the speed is 12.5 meters per second.

`d= 45 \ m \\s= 12.5 \ m/s`

`t=(45 \ m)/(12.5 \ m/s)`

Divide. Note that the meters, or "m" will cancel each other out.

`t=(45 )/(12.5 \ s)`

`t=3.6 \ s`

It will take the dolphin 3.6 seconds to swim a distance of 45 meters are 12.5 meters per second.