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torisob [31]
2 years ago
7

The average of eight numbers is 56. When one of the numbers was left out, the mean decreased to 54. What number was left out?

Mathematics
1 answer:
Alexandra [31]2 years ago
4 0

The number that was left out is 70.

<h3>What is the number that was left out?</h3>

Average is the sum of a set of numbers divided by the total numbers in the data set.

Average = sum of numbers / total numbers

  • Sum of numbers when there are 8 numbers = 56 x 8 = 448
  • Sum of numbers when there are 7 numbers = 54 x 7 = 378
  • Difference = 448 - 378 = 70

To learn more about average, please check: brainly.com/question/25842202

#SPJ1

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The domain of the function is the set of all the values of x that would allow the function to have real values. Since the radicand is x - 3, the value of x cannot be less than 3 because that would make the value of sqrt (x - 3) an imaginary number. Thus, the domain should be all numbers GREATER than or equal to 3.

8 0
3 years ago
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Answer: In fraction : \dfrac{373}{500}

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Step-by-step explanation:

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Then, the fraction of ream Norm has will be :-

\dfrac{\text{Number of sheets left from ream }}{\text{Total sheets in a ream }}\\\\=\dfrac{373}{500}

To convert in decimal we divide 373 by 500, we get 0.746.

Hence, The portion of a ream Norm has as = \dfrac{373}{500} or 0.746

3 0
3 years ago
Abox of cereal states that there are 81 calories in a
ryzh [129]

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Step-by-step explanation:

hope this helps :D

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Dovator [93]

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