Answer :
The mean length of the rainbows is 20 miles.
To determine the mean length of the rainbows we are going to divide the Total miles in length by the number of rainbows.
Using this formula
Mean length=Total miles in length /Number of rainbows
Where:
Total miles in length=100 miles
Number of rainbow=5
Let plug in the formula
Mean length=100/5
Mean length=20 miles
Inconclusion the mean length of the rainbows is 20 miles.
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