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REY [17]
2 years ago
5

5. At a classroom costume party,

Mathematics
2 answers:
Ivahew [28]2 years ago
7 0

Answer:

42+b+g

Step-by-step explanation:

42+b+g is the only specific answer because b (boys) and g (girls) are not specified as numbers.

Alenkasestr [34]2 years ago
6 0

The required simplified value of b + g is 21.


Given that,

At a classroom costume party, the average age of the b-boys is g, and the average age of the g girls is b.
The average age of everyone at the party (all these boys and girls, plus their 42- year-old teacher) is b+g,

<h3>What is average?</h3>

The average of the values is the ratio of the total sum of values to the number of values.

Here,

The average age of the b-boys is g.
The average age of the g-girls is b.
The average age of everyone at the party (all these boys and girls, plus their 42-year-old teacher) is b+g,

Now,
average of  n = 3 (b , g , b+g)
Average =  g + b + 42 / 3
b + g = (b + g + 42 ) / 3
3b + 3g = b + g +  42
3b - b + 3g - g = 42
2b + 2g = 42
2 (b + g) = 42
b + g = 21

Thus, the required simplified value of b + g is 21.

Learn more about average here:

brainly.com/question/24057012

#SPJ2


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steposvetlana [31]

In the given question Laura has $30 to spend on food for the week.

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Step-by-step explanation:

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DaniilM [7]
16 n^2 -10n + 129 = 8n^2 -8

We collect the terms:
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The steps for completing the square:

1) Move the "non X" (or "non N") term to the right:

8n^2 -10n  = -137

<span>2)<span> Divide the equation by the coefficient of N² which in this case is 8
n^2 -1.2n = </span></span><span><span>-17.125 </span>

3) Take the coefficient of "N"; divide it by 2; square it; add it to both sides of the equation.
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</span>
n^2 -1.2n +.36 = <span>-17.125 +.36

Take the square root of both sides:</span>
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3 years ago
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