Word problem that includes distance and hours/ I do not know the formula/can anyone h

[emimms]

Two ships leave a harbor at the same time. The first ship heads north at 20 miles per hour and the second ship heads west at 15 miles per hour. Write an expression that gives the distance (d) between the ships after (h) hours. Can anyone explain and help? Thanks

 

[tkhunny]

Are you familiar with Right Triangles and the Pythagorean Theorem? These will get you there.