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Dimas [21]
3 years ago
11

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.
89.4


B.
93


C.
90


D.
99
Mathematics
2 answers:
OverLord2011 [107]3 years ago
8 0

Answer:Correct is 99

Step-by-step explanation:

slava [35]3 years ago
5 0

Answer:

Option D. 99

Step-by-step explanation:

Let

x------> the grade in the fifth exam

we know that

91=(99+86+76+95+x)/5

solve for x

91*5=(356+x)

455=(356+x)

x=455-356=99

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