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belka [17]
4 years ago
12

A set of 7 numbers has a mean of 12. What additional number must be included in this set to create a new set with a mean that is

3 more than the mean of the original set?
Mathematics
1 answer:
Len [333]4 years ago
8 0
A number that is bigger than the values of the original 7 sets, I can not give a specific number as I am not provided with enough information.
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60 pts! <br><br>2x + 34 = 4(x + 5)<br><br>solve the equation for x. ​
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Answer:

x=7

Step-by-step explanation:

expand 4(x+5): 4x+20

2x+34=4x+20

subtract 34 from both sides

2x+34-34=4x+20-34

2x=4x-14

subtract 4x from both sides

2x-4x=4x-14-4x

-2x=-14

divide both sides by -2

-2x/-2=-14/-2

x=7

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Step-by-step explanation:

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