Mathematics, 01.12.2019 12:31 lilycastillo15

Davids scores on the first three of four 100-point math tests were 86, 92, and 89. what score does he need on his fourth math test to ensure an average score of at least 90?

a. x > 89

b. x > 93

c. x > 78

d. x > 90

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Davids scores on the first three of four 100-point math tests were 86, 92, and 89. what score does h...

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