# Five numbers have an average of 90. Four of the numbers are 87, 93, 89, and 85. What is the remaining number?

Remaining number is

The sum divided by the count determines the average of a given set of numbers.

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To find the remaining number, first calculate the total sum of the five numbers using the formula: sum = average × number of terms. Then subtract the sum of the four known numbers from this total to find the remaining number.

Average = (87 + 93 + 89 + 85 + x) / 5 = 90

Sum = 90 × 5 = 450

450 - (87 + 93 + 89 + 85) = 450 - 354 = 96

Therefore, the remaining number is 96.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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