12. Lisa is taking a chemistry course in which three tests are given. To get a B, she
must average at least 80 on the three tests. She got 86 and 72 on the first two
tests, respectively. Determine in terms of an inequality what scores on the last
test will allow her to get at least a B.
A T > 80
B. T 278
C. T > 82
D.T 2 82
must average at least 80 on the three tests. She got 86 and 72 on the first two
tests, respectively. Determine in terms of an inequality what scores on the last
test will allow her to get at least a B.
A T > 80
B. T 278
C. T > 82
D.T 2 82
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Answer:
C. T>82
Step-by-step explanation:
86+72+(83 above because T>82)
and then divided by 3 (number of tests) equals to 80+ average