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4 years ago

11

katelyn has taken 4 math quizzes. Her scores were 75,80,97, and 92. What must she get on her next quiz to have an average of at

least an 88?

1 answer:

Vilka [71]4 years ago

4 0

To find the average add all the numbers together then divide by how many numbers there are.

75+80+97+92=344 divided by 4 = 86

So her average right now is 86.

She’d have to make 96 to get an average of 88.

75+80+97+92+96=440 divided by 5=88

The answer is 96

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<u>Exercise 3</u>

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Answer:

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now to find u, we equate the two equations.

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