haileymarie35oyg395 haileymarie35oyg395

15-11-2017
Mathematics

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suppose your grades on four science exams are 99, 86, 76, and 95. what grade do you need on your next exam to have a 91 average on the five exams? A)99 B)89.4 C)93 D)90

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nicoleb0731 nicoleb0731

15-11-2017

99 because if you add 78+99+95+86 you get 356 and 356+99 is equal to 455 and 455 divided by 5 is 91.

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