2x+y=6
3x+5y=9
y = 6 - 2x
3x + 5( 6-2x ) = 9
3x + 30 - 10z = 9
7x = 21
x = 3
y = 6 - 2(3)
y = 0
Answer: x=5 , y=3
steps:
3x-2(2x-7)=9
simplify
(-x+14=9)
isolate x for -x+14=9
x=5
y=2(5)-7
y=3
Answer:
141.3 cubic inches
Step-by-step explanation:
The volume of a cylinder is found using the volume formula
.
The radius is half the diameter 6 which is 3.
Substitute h=5 and r = 3.
![V = \pi r^2h\\V = \pi (3^2)(5)\\V=\pi *9*5\\V = 45\pi \\V= 141.3](https://tex.z-dn.net/?f=V%20%3D%20%5Cpi%20r%5E2h%5C%5CV%20%3D%20%5Cpi%20%283%5E2%29%285%29%5C%5CV%3D%5Cpi%20%2A9%2A5%5C%5CV%20%3D%2045%5Cpi%20%5C%5CV%3D%20141.3%20)
6 feet.
Hope I helped!
~ Zoe