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## Homework Statement

A boat moves 15.0 km across a lake in 30.0 min. What was the average speed of the boat in kilometers per hour?

## Homework Equations

average speed: d/t

## The Attempt at a Solution

ok since it is asking kilometers per hour that is the part tha confuses me.

i mean i believe that it is 15.0 km/30.0

but it is asking for hour...

sooo that where i get lost.