3 years ago

At Clement's Jr. High School, a student needs an 86 average to earn a B. Sue's average on

Mathematics

1 answer:

andriy [413]3 years ago

5 0

Answer:

Sue must score 94 on the final test to earn a B.

Step-by-step explanation:

There are five tests in total.

Sue's average on the first four tests is 84.

If after the final test, she scores X, she will have a B on average of five tests.

We have the following equation:

86 = (4 × 84 + X)/5

<=> X = 5 × 86 - 4 × 84

=> X = 94

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