X-y=1
x+y=3
You see the y's can cancel out. So add it together and you have:
2x=4
x=2
Now that you have x, plug it in to one of the equations to find y.
I will plug it into the first one.
(2)-y=1
-y=-1
y=1
Your answer should be 60%, but I'm not sure.
(edited)
Answer:
A
Step-by-step explanation:
So to start, Mia has an account that is overdrawn by $52.65 so her account is negative 52.65. She then adds 135.50 and used 24.30 so you would add 135.50 and 24.30 respectively. This would be (-52.65) + (132.50) - (24.30). This then would get you $58.55
Answer:
(1/7, 1)
Step-by-step explanation:
By "answer," you probably meant "solution." What is the "solution of the system of linear equations
- 5y = - 5
+ 7x +6y=7
The first eqation can be solved for y: y = 1. Substitute 1 for y in the secon equation. Then 7x + 6(1) = 7, or 7x = 1, or x = 1/7.
The solution to this system is (1/7, 1)
Volume of the sphere = (4/3) pi (5a)^3
Volume cone = (1/3) pi (3a)^2 * h (h = height).
(4/3) pi 125a^3 = (1/3) pi 9a^2 h
(4/3) * 125a^3 = (1/3) 9a^2 h
h = (4/3) * 125 a^3
-------------------- = 4 * 13.889 a
(1/3) 9 a^2
h = 55.56 cu units to nearest 1/100
