Hello there!
For this, you'll first need to convert 20km to meters! This way, the units will cancel out to give you time!
So:
distance= ____m
average speed= 4 m/S
time= solve
You'll need to use an equation to solve for time, which requires minimal algebra manipulation. :)
Original equation:
Speed= distance/time
Hint: Multiply both sides by time first, then go from there!
So, do some simple algebraic manipulation to get time. :)
The simply plug in your values to get the answer!
My goal is to make sure you understand the problem, which is why I'm not going to do the work for you. It'll be more work now, but less work in the future! :)
Hope this helped!!
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