Asked by liz
You score an 86 on the first of two exams. Write and solve an equation to find the score x
that you need on the second exam to have a mean score of 90.
that you need on the second exam to have a mean score of 90.
Answers
Answered by
rio
i think there is a typo, so I solved for the score you need on the third exam.
90 = [2(86) + x] / 3
270 = 172 + x
98 = x
hope this helps :)
90 = [2(86) + x] / 3
270 = 172 + x
98 = x
hope this helps :)
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