Midpoint Summative Practice Exam

What is the average length of the two bases 6 and 4?

4 6 5 7

Correct Answer:

Explanation:

The main idea is how to find an average, the arithmetic mean, of two numbers. You do this by adding the two values and dividing by two. With base lengths 6 and 4, the average is (6 + 4) / 2 = 10 / 2 = 5. This is the midpoint between the two lengths, what you get when you average them. 4 would be the smaller base, 6 the larger, and 7 isn’t a mean of those two numbers. So the correct value is 5.

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