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Annette [7]
3 years ago
9

The mean value of 8 numbers is 17. Three of these numbers (9, 11, and 20) are discarded.

Mathematics
1 answer:
Viktor [21]3 years ago
3 0

Answer:

19.2

Step-by-step explanation:

You get the mean of a set of numbers by adding them and dividing the sum by how many numbers there are.  In this case, you don't know what the individual 8 numbers are, but you can find out what they add up to.

Mean = (sum) / 8

17 = (sum) / 8

17 x 8 = sum

136 = sum

Now take out the numbers 9, 11, 20, which reduces the sum by 40.  There are 5 numbers left and they add up to 136 - 40 = 96.

The new mean is 96 / 5 = 19.2

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Answer:

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Step-by-step explanation:

We can rewrite this as

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3 years ago
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Step-by-step explanation:

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2 years ago
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WINSTONCH [101]

Answer:

Trudy will have 4 pieces of the fabric.

Step-by-step explanation:

Since, 1 foot of the fabric = 12 inches

If Trudy cuts the fabric into pieces of 3 inch.

Number of pieces she will have = \frac{\text{Total length of the fabric}}{\text{Length of one piece}}

                                                     = \frac{12}{3}

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3 0
3 years ago
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