The compound inequality to find the range of scores she can make on her final exam to receive a C will be 44.5 ≥ x ≥ 71.5
How to compute the inequality?
Based on the information, the inequality will be:
70 ≥ (73 + 83 + 85 + 90 + 2x) / 6 ≥ 79
70 ≥ (331 + 2x) / 6 ≥ 79
420 ≥ 331 + 2x ≥ 474
89 ≥ 2x ≥ 143
44.5 ≥ x ≥ 71.5
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Alaina has scores of 73,83,85,90 on her math tests. Use a compound inequality to find the range of scores she can make on her final exam to receive a C in the course. The final exam counts as two tests, and a C is received if the final course average is from 70 to 79
