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Mathematics 27 Online
OpenStudy (anonymous):

You have to average at least a "90" on your test scores to get an "A." You already have an 85, 92, and 91.What scores must you receive on your next test to earn a "90" average?

OpenStudy (anonymous):

(85 + 92 + 91 + x)/4 >/ 90 x >/ 92

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