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tatyana61 [14]
3 years ago
9

Imena's math test scores are 83, 93, 78, 89, and 83. She has one more math test this semester. What score most she get on the te

st to have a median score of 85?
Mathematics
2 answers:
marshall27 [118]3 years ago
8 0
87 is the median because 83 and 87's average is 85.
ASHA 777 [7]3 years ago
5 0
Mean = (83 + 93 + 78 + 89 + 83 + x)/6
85 = (426 + x)/6

Multiply both sides by 6 to remove the denominator on the RHS of the equation
85 * 6 = [(426 + x)/6] * 6
510 = 426 + x
510 - 426 = x
84 = x

x = 84
She has to get a score of 84 to have a median score of 85.

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