Question

Kayla ran from her home to a beach at a speed of 6 meters per second. the distance from her home and the beach was 756 meters. A) how long did she take to run from her home to the beach? B) if kayla wants to take 18 fewer seconds to reach the beach, at what speed must she run?

Answer 1

Looking at the units, 756 meters divided by 6 m/s will give you the seconds that you need.

So for A) 756/6 = 126

For B, you take the answer from A, and subtract 18 seconds, which would make it 108.  Then you take the distance, 756 and divide by 108, that will be the speed.