So, at the beginning there are a total of 25*3=75 siblings (we can assume that each of them had exactly 3 siblings, that's what average means; that we can assume this).
Now we have 25+1=26 students and the number of siblings is 75+8=83
and the average is

, and rounded it's 3.19.
Step-by-step explanation:
It's simple here's The steps:
*Step 1
-Take your ruler and a pencil and construct a segment of any length on a piece of paper
-Then, you will try to set your compass opening to match the length of segment AB
-Take your compass. Make your sure that the pencil is included in it.
-Put the needle of the compass at endpoint A and adjust your compass so that the tip of your pencil touches endpoint B
*Step 2
-Put the needle of your compass at A and draw an arc
-Put the needle of your compass at B and draw an arc
-The two arcs should meet
*Step 3
-Draw the segments from the two endpoints to the point where the two arcs intersect
Answer:
420 in³
Step-by-step explanation:
14 x 10 x 3 = 420
Answer:
<g = 73°
Step-by-step explanation:
107° + b = 180°
180° - 107° = b
b = 73°
Being that <b and <g are vertical angles, they will have the same angle measurement. Therefore, <g = 73°. (:
Answer:
First find the area 72*63
A=4536
Then find the area 12*12
A=144
Then divide 4536/144
You would need 31.5 12 by 12in covers to decorate the rectangular region
As for the 6 by 6
You would need 126 album covers
As for the 9 by 9
You would need 51 covers
And as for the 15 by 15
You would need 20.6 covers