Well since the formula for the arithmetic mean is 
thourgh 
will be each of the numbers (2, 63, 88, 10, 72, 99, 38) and n would be the number of numbers being added. You have 7 numbers being added making n 7 so your equation would be 
What is the value of x?????
1 answer:
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Answer:
Given:
Rita covered 1 mile in 15 minutes.
She covered 3 miles in 30 minutes.
To find:
The rate at which she is riding.
Solution:
Let y be the number of miles covered in x minutes.
Rita covered 1 mile in 15 minutes. So, the point is (15,1).
She covered 3 miles in 30 minutes. So, the point is (30,3).
Slope of the line:
Therefore, she is riding miles per minute.