Answer:
Zero Point Nine Nine repeating?
Step-by-step explanation:
-x + 2y = -4
-x = -2y - 4
x = 2y + 4
5(2y + 4) - 4y = 8
10y + 20 - 4y = 8
6y + 20 = 8
6y = -18
y = -3
-x + 2y = -4
-x + 2(-3) = -4
-x - 6 = -4
-x = 2
x = -2
The coordinate pair is (-2, -3) (x = -2, y = -3.)
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They each have 30 kids per class, How many classes are they teaching a day?
Answer:
2y = x+6
Step-by-step explanation:
From (y-1) = -2(x-1)
y-1 = -2x+2
y=-2x+2+1
y=-2x+3 compare with y = mx +C
m1= -2
For perpendicularity rule: m1m2 = -1
m2 = -1/-2 = 1/2
Equation of the line that passes through (0,3) is
y-y1 = m2(x-x2)
y-3 = 1/2(x-0) = 1/2(x)
y-3 = x/2
Multiply through by 2
2y-6 = x
2y = x+6
2y-x=6
2y-x-6=0
