Question

A cruise ship is currently 20 kilometers away from its port and is traveling away from the port at 5 kilometers per hour . The function is y=5x +20 relates the number of kilometers y the ship will be from its port x hours from now. How far will the cruise ship be from its port 3 hours from now

Answer 1

You can do this. It's actually pretty simple

Explanation:

You are given 3 hours. and you re told 5 kph or kilometres per hours.

3 replaces the x variable. You can take it from there and for sure you'll get the answer you want for y