1) 3x+y+z=4
2) 2x+2y+3z=3
3) x+3y+2z = 5
1)*2 6x + 2y + 2z = 8
2) 2x + 2y +3z = 3
- __________________
4x - z = 5
2)*3 6x + 6y + 9z = 9
3)*2 2x + 6y + 4z = 10
- __________________
<span>4x+5z =-1
</span>
4x+5z = -1
4x - z =5
- ________
6z = -6
<u>z = -1
</u><u /><u>
</u>If z=-1,
4x -(-1) =5
4x = 5-1
x = 4/4
<u>x=1</u>
3x+y+z=4
3(1)+y+(-1)=4
3+y-1=4
<u>y=2
So z=-1, x=1, y=2</u>
Answer:
19,800
Step-by-step explanation:
7x8 is 56 then you take 56% away from 45k
The expression represents 0.30 times y, but I do not know the value of y.
Answer: choice C) -2/3
The line X is completely straight meaning that the slope of line X is the same no matter which two points you pick. Since we're given that line X has a slope of -2/3 through the points (-7,6) and (-4,4), this also applies to the portion from (-1,2) to (5,-2)
The variable cc refers to how much ink is in a certain number of
cartridges. If the box says 42cc, that means the amount of ink in those
particular cartridges is 42. If a box said 12cc, the amount would be 12.
The variable cc just states the amount of ink you can expect from a
particular amount of cartridges.
