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Can somebody help me on this pls?

Can somebody help me on this pls?-example-1

2 Answers

6 votes

Answer:

Explanation:

User John McCarthy
by
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6 votes

Answer:

100

Explanation:

Let x be the value he needs on the 4th test

To find the average, we add up all the scores and divide by the number of tests

(85+92+95+x) /4

We know the average is 93

(85+92+95+x) /4 = 93

Multiply each side by 4

(85+92+95+x) /4 *4 = 93*4

(85+92+95+x) = 372

Combine like terms

272 +x = 372

Subtract 272 from each side

272+x-272 = 372-272

x = 100

User Pansy
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