Jesse and Mia are competing in a week long race. They have one week to run 30 miles. On the first three days Jesse averages (2/3) of a mile. On day four she runs 10 miles. Mia averages 3 miles a day over the first 4 days. What is the average of their average that they have to run over the final three days?
Use reasoning to answer the following question.
6
Jesse runs 2 miles in the first three days because 3 x (2 / 3) = 2.

Jesse has 18 miles left to run because 30 - 10 - 2 = 18.

Jesse has to run an average of 6 miles a day because 18 / 3 = 6.

Mia runs 12 miles over the first four days because 4 x 3 = 12.

She has 18 miles left to run because 30 - 12 = 18.

She has to run six miles a day because 18 / 3 = 6.

The total they both have to run is 12 miles a day.

The average they have to run per day on average is 6 miles because 12 / 2 = 6.

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The answer: 6