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nasty-shy [4]
4 years ago
5

There are 20 children at a library. Six of the children have an average age of 5 years. The remaining children have an average a

ge of 8 years. What is the average age of the children at the library? Enter your answer in the box. WILL GIVE BARINLIYEST
Mathematics
1 answer:
Allushta [10]4 years ago
7 0
Answer: The average age is 7.1 years.

This problem is an example of when we need to take a weighted average. We simply can't just find the average of 5 and 8, because there are different children of each each.

To start, lets multiply the total number of children by their individual ages.

6 x 5 = 30 years
14 x 8 = 112 years

There are 142 years among the 20 years, so divide 142 by 20. This gives us an average age of 7.1 years.
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3 0
3 years ago
Solve for x under the assumption that x&lt;0. <br> x-5/x&lt;4
AleksandrR [38]
If you would like to solve the inequality x - 5/x < 4, you can do this using the following steps:

<span>x - 5/x < 4
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3 0
3 years ago
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Answer:

No

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8 0
3 years ago
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yanalaym [24]

Answer:

10

Step-by-step explanation:

\frac{4 x 5}{2}

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3 0
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