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
Answer:
You could say +3 and -2 or +4 and -1
Step-by-step explanation:For example if you draw a number line
count 1 hump between each line. it equals 5.
|_______|_______|_______|_______|_______|
-2 -1 0 1 2 3
Answer:
Given - A circle with centre at O .
To Prove - angle poq = 2 angle paq .
Proof - angle poq = angle paq -------- 1.
Similarly
:
POQ =2 PBQ
From 1
2 PBQ = 2 PAQ
Angle PBQ = Angle PAQ .
HENCE PROVED...
(see attachment for a graph of

)