Question

You are training for a marathon. On the first three days of training, your run for 2,4, and 5 miles. How many miles should you run on the fourth day so that your run a mean of 4 miles per day?

Answer 1

To have a mean of 4 miles per day over four days, you should run 5 miles on the fourth day.

Step-by-step explanation:

To find the number of miles you should run on the fourth day, you need to calculate the total distance you need to run over the four days and then find the difference between that total and the sum of the distances you've already run.

Let's calculate the total distance:

1. Add up the distances for the first three days: 2 + 4 + 5 = 11 miles.
2. Multiply the mean distance per day (4 miles) by the total number of days (4): 4 * 4 = 16 miles.

To find the distance for the fourth day, subtract the total distance you've already run from the calculated total: 16 - 11 = 5 miles.

Therefore, you should run 5 miles on the fourth day to have a mean of 4 miles per day.

Answer 2

The answer would have to be like the same as the first day, so that being said you would have to add. I think the answer is 2,2,4. hope this helps.