Answer:
45 i think
Step-by-step explanation:
Answer:
A. 27
Step-by-step explanation:
21 x 3 = 63
9 x 3 = 27
Answer:
Step-by-step explanation:
--- sides
Required
The measure of B
The interior angles of a polygon is:
So, we have:
The measure of B is calculated using:
Substitute known values
Collect like terms
Collect like terms
Answer:
The answer is: There are only 143034 books left after the students return to their classroom
Step-by-step explanation:
Lets call X= Number of books left in the library after the students return to their classroom.
B=Total of Books in the library
S=Total of books taken by the 3rd grade students
If each student of the 3rd grage class take 2 books, the total of book taken by the 3rd grade students would be:
S=2 books per student * Total of students of the 3rdgrade
S=2*21=42
Then we must substract Total of Books in the library minus Total of books taken by the 3rd grade students. That would be:
X=B-S
X=143076-42
X=143034
I hope that this answer will help you
