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11 votes
11 votes
PLEASE HELP PLEASE HELP!!!!

You run m miles on Monday, the same amount on Tuesday, and 3 miles on Wednesday. Write an expression in the simplest form that represents the total amount in each situation.
(please show work)

User Chrysophylaxs
by
2.8k points

1 Answer

16 votes
16 votes

The mean, or average, is equal to the sum of all the miles divided by the number of terms you added together. We have 4 terms that will be added, but are missing one term. We will solve for the missing term by setting up an equation for the average and solving for x, the number of miles you must run on Thursday.

3 = (2 + 3 + 4 + x) / 4

12 = 2 + 3 + 4 + x

12 = 9 + x

x = 3 miles

User Stackmate
by
2.9k points
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