Total Cost in a day is
. Profit function is
. And the revenue function is
. In a day, bookstore must sell at least 15 books, because of 6n-90=0, in order to make profit.
Answer:
22%
Step-by-step explanation:
22-18=4
4÷18=22
22×100=22%
Answer:
30.3m^2
Step-by-step explanation:
I started off by finding the area of the semi circle. The formula πr^2 divided by 2. The radius of the circle is 2 because it is half of the diameter which is 4. So π(2)^2 divided by 2 is 6.3.
Next I broke apart the the shape into a rectangle and a triangle for simplicity sake. So doing this I had to know where to cut and if you look at the top of the figure it shows 2m for the length at the top. So I put a vertical line there. Thus changing the 10m on the bottom to a 8m section and a 2m section. So the rectangle's area will be the length times the height which is 2x4=8.
The triangle's area can be found with the equation BH/2 and we the 8 base we found and a height of 4 it is 8x4/2. Which ends up as 16.
Finally you add up all three area's that you found 8+16+6.3=30.3
The answer of 1+1 is 2 put 1 finger up and the other one and just put them together and you get 2
