Answer:
Step-by-step explanation:
Write down the equation for calculating the volume of a sphere. This is the equation: V = ⁴⁄₃πr³. ...
Find the radius. If you're given the radius, then you can move on to the next step. ...
Cube the radius. ...
Multiply the cubed radius by 4/3. ...
Multiply the equation by π.
Answer:
Boys have it rougher than girls.
Step-by-step explanation:
Because of the order of operation, you would first do the division, which makes the expression 8-6+3. Now you would perform them left to right, first into 2+3, then get your answer of 5.
Let
x-------> the number of fiction books
y-------> the number of nonfiction books.
we know that
-----> equation ![1](https://tex.z-dn.net/?f=%201%20)
-----> equation ![2](https://tex.z-dn.net/?f=%202%20)
Add equation
and equation ![2](https://tex.z-dn.net/?f=%202%20)
<u>find the value of y</u>
![x+y=26](https://tex.z-dn.net/?f=%20x%2By%3D26%20)
![19+y=26](https://tex.z-dn.net/?f=%2019%2By%3D26%20)
![y=26-19=7\ nonfiction\ books](https://tex.z-dn.net/?f=%20y%3D26-19%3D7%5C%20nonfiction%5C%20books%20)
therefore
<u>the answer is</u>
Part a) the number of fiction books is ![19\ fiction\ books](https://tex.z-dn.net/?f=%2019%5C%20fiction%5C%20books%20)
Part b) the number of nonfiction books is ![7\ nonfiction\ books](https://tex.z-dn.net/?f=%207%5C%20nonfiction%5C%20books%20)
Answer: Areas = 139m²
Cost = Rs3475
Step-by-step explanation:
Area of a square wall of xm= xm².The area of the 4 walls = 4x²m²
Therefore, since the height = 6m, the other side = 6m, the area = 6x6=36m².
Area of the Four walls = 36m²x 4
= 144m². Biu the areas of the four walls excluding the door and window. Area of the door = 2m x 1m= 2m², and area of the window = 3m x 1m = 3m². Total area of the door and window = 2m² + 3m² = 5m².
Therefore, the total area of the four walls excluding the door and window = 144m² - 5m²
= 139m².
The amount required to carpeting the room will be
Let the number of square room carpeted at Rs25 which equals Rs8100 = xm²
Therefore, to know the number of square covered by this amount,= Rs8100/Rs25 = 324m²
If 324m² = Rs8100
1m² = 8100/324
139m²= 8100/324 x 139
= Rs3475