Solve.Professor Chang will give a student in her algebra class an A if his or her final score is at least 93, a B if the score is between 84 and 92, inclusive, and a C if the score is between 75 and 83, inclusive. Any student with a score between 66 and 74, inclusive, will receive a D, and anyone with a score at or below 65 will fail with a grade of an F. Letting x represent a student's grade, write a series of five inequalities corresponding to the possible grades given in the class
A.
| x ? 93 | A |
75 ? x ? 83 C
66 ? x ? 74 D
| x ? 65 | F |
B.
| x ? 93 | A |
75 ? x ? 83 C
66 ? x ? 74 D
| x ? 65 | F |
C.
| x ? 93 | A |
75 ? x < 83 C
66 ? x < 74 D
| x ? 65 | F |
D.
| x > 93 | A |
75 ? x ? 83 C
66 ? x ? 74 D
| x < 65 | F |
Answer: B
Mathematics
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