Ariel swam 13 miles.
Step-by-step explanation:
Given,
Laps swam by Mackenzie = 28 laps
Laps swam by June = 3 times as many as Mackenzie = 3(28) = 84 laps
Laps swam by Ariel = 20 more than June = 84+20 = 104 laps
It is given that,
8 laps = 1 mile
1 lap = [tex]\frac{1}{8}\ mile[/tex]
We can determine the number of miles of Ariel by multiplying total laps by Ariel to unit rate of laps in terms of mile.
104 laps = [tex]\frac{1}{8}*104[/tex]
104 laps = 13 miles
Ariel swam 13 miles.
Keywords: unit rate, addition
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