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HELP PLEASE!!! Write an inequality and solve. On the last three chemistry exams a student scored 81, 85, and 91. What score must the student earn on the next exam to have an average above 85?
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HELP PLEASE!!!

Write an inequality and solve.

On the last three chemistry exams a student scored
81, 85, and 91. What score must the student earn on
the next exam to have an average above 85?

User Deysi
by
3.1k points

1 Answer

1 vote

Explanation:

Let x be the next exam's score.

We have 81 + 85 + 91 + x > 4(85).

=> 257 + x > 340

=> x > 83

Therefore the student must score above 83.

User Travis Weston
by
3.4k points
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