Answer:
Josie: 100 + 5x
Allanah: 10 + 20x
x is to represent the unknown variable of how many times they will repeat this process.
Answer:
Either x = 0 or ( 7x + 3 ) = 0 :
Answer:
Answer:
8 and 24
Step-by-step explanation:
let width be X
then length will be 3x
2(3x+X)=64
3x+X=32
4x=32
X=8
then 3x=24
Answer:
66
Step-by-step explanation:
- Plug in the variable valuables: 7(4) + 5 + 11(3)
- Multiply what needs to be multiplied: 7(4) = 28, 11(3) = 33
- Plug 28 and 33 in: 28 + 5 + 33
- 28 + 5 + 33 = 66
I hope this helps!
120º is 1/3 of a complete revolution of 360º. So the area of this sector should be 1/3 the area of the complete circle.
A circle with radius 9 has area 9^2 π = 81π.
So the sector has area 81π/3.
Put another way: The area <em>A</em> of a circular sector and its central angle <em>θ</em> (in degrees) occur in the same ratio as the area of the entire circle with radius <em>r</em> according to
<em>A</em> / <em>θ </em>º = (π <em>r </em>^2) / 360º
==> <em>A</em> = π/360 <em>θ r</em> ^2
In this case, <em>r</em> = 9 and <em>θ</em> = 120º, so
<em>A</em> = π/360 * 120 * 81 = 81π/3