Question

A dolphin travels a distance 20 miles up the coastline in 153 minutes. If 1 mile is equal to

1609 meters, then what is the dolphin's average speed in meters/second rounded to the
nearest tenth?
+/-
HELP ME PLEASE

Answer 1

3.51m/s

Step-by-step explanation:

Given parameters:

Distance = 20miles

Miles to meters:

1 mile = 1609m

20miles = 20 x 1609 = 32180m

Time = 153minutes

1 min = 60s

153min = 60 x 153 = 9180s

Unknown:

Average speed = ?

Solution:

To solve this problem;

Average speed =
`(distance )/(time taken)`

Average speed =
`(32180)/(9180)` = 3.51m/s