Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the other two sides of this t
2 answers:
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Answer:
(A)74
Explanation:
Let her average score on the last two tests = x.
The six scores will now be: 82,78,87,73, x and x.
Since the average score for her first six chemistry tests = 78
We then solve for x.
Her average score for the last two tests is 74.
Answer:
This is true look at picture for clarification
