Answer:
x=18
Step-by-step explanation:
We need to find the areas of the rectangles
1st rectangle
A= l*w
A = (2x+4)*9
= 18x+36
2nd rectangle
A = l*w
= 15*(3x-30)
= 45x-450
Since the area of the rectangles are equal, we set these two equations equal
18x+36 = 45x-450
Subtract 18x from each side
18x-18x+36 = 45x-18x-450
36 = 27x-450
Add 450 to each side
36+450 =27x
486 = 27x
Divide by 27 on each side
486/27 = 27x/27
18=x
Solution:
<u>Step-1: Find the area of the pizza.</u>
- Area of pizza = πr²
- => πr² = π x 9 x 9
- => 81π = Area of pizza
<u>Step-2: Find the area of the slice.</u>
- = 81π/6 = Area of slice
- => 27π/2 = 13.5π = Area of slice
Option D is correct.
So, the answer is b multiplied by n or
b·n
Because she buys n books, and each book costs b dollars, so n·b gives you the total
Answer: 36
Step-by-step explanation:
Multiply and round up from 35.9 to 36
