Answer:
42
Step-by-step explanation:
ABC + CBD = ABD
3x+33 + 5x+13 = 70
Combine like terms
8x +46 = 70
Subtract 46 from each side
8x+46-46 = 70-46
8x = 24
Divide each side by 8
8x/8 = 24/8
x=3
We want to find ABC
ABC = 3x+33 = 3*3 +33 = 9+33 = 42
You rearrange the equation to y=5x-2 and the slope is 5 and the Y-intercept is -2 or (0,-2)
Plug x=3 in the first equation to find y:
4(3)+5y=2
y=-2
so a=-2
Next, plug x=3, y=-2 in the second equation to find b:
6(3)-2(-2)=22
b=22
X=120
2/5-(x/300)=0
Simplify= X/300
2/5-X/300=0
Simplify=2/5
2/5-X/300=0
The left denominater is: 5
The right denominater is: 300
C).
Not sure ..........;)