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quester [9]
3 years ago
14

Over the course of the semester, Donnie's eight test scores averaged a 76. He looked through his notebook, but he could only fin

d seven of the tests. The test scores he has in his notebook are 71, 92, 87, 75, 64, 70, 83. What score did Donnie make on the test that is missing from his notebook?
A) 62
B) 66
C) 72
D) 77
E) 82
Mathematics
1 answer:
AnnyKZ [126]3 years ago
6 0
I think the answer is D that what i think
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Step-by-step explanation:

Notice target point has y=0, so all terms with y are zero. Then all 6 equations reduce to m x = k, for various m and k. So calculate 4×m and compare to k six times.


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