The formula for the volume of a cylinder is V=Bh or V=πr2h
Given:
Book club A charges $20 for membership and $2 per book rental.
Book club B charges $10 for membership and $3 per book rental.
To find:
The number of books for which the cost be the same at both book clubs.
Solution:
Let x be the number of books.
Book club A charges $20 for membership and $2 per book rental. So, the total cost is
...(i)
Book club B charges $10 for membership and $3 per book rental. So, the total cost is
...(ii)
Equating (i) and (ii), we get
![10+3x=20+2x](https://tex.z-dn.net/?f=10%2B3x%3D20%2B2x)
![3x-2x=20-10](https://tex.z-dn.net/?f=3x-2x%3D20-10)
![x=10](https://tex.z-dn.net/?f=x%3D10)
The total cost is
![C_1=20+2(10)](https://tex.z-dn.net/?f=C_1%3D20%2B2%2810%29)
![C_1=20+20](https://tex.z-dn.net/?f=C_1%3D20%2B20)
![C_1=40](https://tex.z-dn.net/?f=C_1%3D40)
Therefore, the total cost at both book clubs are same for 10 rental books and that cost is $40.
Answer:
$274.77
Step-by-step explanation:
213.00 ÷29 =61.769999 then add 213.00 plus 61.76
I actually rounded up maybe I shouldn't of then answer would be $274.76. im not postive this is correct .
Answer:
Area = 142.5 square inches
Step-by-step explanation:
So your shape is kind of a little house. The bottom part is a rectangle 9 × 9.5. The area of the rectangle is
Area = length×width
= 9 × 9.5
= 85.5
The "roof" of the little house is a triangle. The area of a triangle is 1/2×base×height
Now, the base of the "roof" is the same as the floor of the house, 9.5 inches.
The height of the whole thing is 21 inches. If we take away the rectangle's wall-height, we'll get the height of the "roof".
Roof height= 21 - 9
= 12 inches
Area_roof
=1/2 × base × height
=1/2 × 9.5 × 12
= 57 square inches
Total area is bottom plus roof (the rectangle and the triangle)
Total Area
= 85.5 + 57
= 142.5 sq in