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Serhud [2]
4 years ago
14

How do you find out the mean?

Mathematics
2 answers:
Schach [20]4 years ago
6 0

Answer:

You can find the mean of the set of numbers by:

1) Adding all the numbers in the set together.

2) Dividing the total amount gotten with the amount of numbers there are.

For example:

The mean of the number set: [1, 2, 3, 4, 5]

1 + 2 + 3 + 4 + 5 = 15

15/5 = 3

3 is the mean of the number set.

~


Alexandra [31]4 years ago
4 0

Answer:

Add up all the numbers, then divide by how many numbers there are

Step-by-step explanation:


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3 years ago
How many liters of 80% alcohol solution and 30% alcohol solution must be mixed to obtain 15 liters of 50% alcohol solution?
Margaret [11]

set up a table (multiply across and add down - <em>don't add the middle column). Use the equation created by the "Total" row to solve for the variable.</em>

               Quantity  (times)      %        equals        Total

Sol'n 1:          x            *           .80             =            (x)(.8)

<u>Sol'n 2:      15 - x        *           .30             =          (15 - x)(.3)</u>

Total:          15            *          .50              =          .8x + .3(15 - x)

                                15(.5)                        =         .8x + 4.5 - .3x

7.5 = .5x + 4.5

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5 0
3 years ago
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