Answer:
The number of books are 189.
Step-by-step explanation:
ratio of note books to the books = 2 : 3
total notebooks = 126
Let the number of books is x.
So, the ratio is
![\frac{2}{3} = \frac{126}{x}\\\\x = 189](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B3%7D%20%3D%20%5Cfrac%7B126%7D%7Bx%7D%5C%5C%5C%5Cx%20%3D%20189)
So, the number of books are 189.
90 % because you move the decimal 2 times to the right.
When the shape is a circle, its perimeter is called the
"circumference" of the circle.
The circumference of a circle is always (pi) times its
diameter.
(pi) is roughly 3.1416 . So if the diameter is 4 meters,
then the circumference is
12.5664... meters .
Rounded to the nearest hundredth, that's 12.57 meters.