Answer:
(x, y, z) = (4, -1, 3)
Step-by-step explanation:
To solve the system of equations:
2x − 3y + 4z = 23 .........................(1)
x + 2y − 4z = −10 ..........................(2)
3x − y + 2z = 19..............................(3)
Simultaneously, we do that by first eliminating one variable from any two equations to have an equation in two variables. The process is repeated with one of the used equations and the third unused equation to have a second equation in two variables. The two equations in two variables obtained can then be easily solved simultaneously.
Let us eliminate z from (1) and (2)
Add (1) and (2)
(1) + (2):
3x - y = 13 ........................................(4)
Multiply (3) by 2
(3) × 2
6x - 2y + 4z = 38 ............................(5)
Add (5) and (2)
(5) + (2):
7x + 0 + 0 = 28
x = 28/7 = 4
Putting this in (4)
3(4) - y = 13
y = 12 - 13 = -1
Putting this in (3)
3(4) - 4(-1) + z = 19
z = 19 - 16 = 3
Therefore,
(x, y, z) = (4. -1, 3)
First, let's find the bottom of the pan's area. 11 x 8 = 88 inches.
Next, we can find the sides. 11 x 3 x 2 = 66 inches for each long side. For the wide sides, 8 x 3 x 2 = 48 inches. These all added together equals 202 inches squared.
1 - 3/8 = 8/8 - 3/8 = 5/8 inches Answer
Answer:
37
Step-by-step explanation:
The puppy was originally 37 pounds before it gained 15.
HOPE THIS HELPS!!!!!!
The answer is 666 because I’m good at math
