Answer:

Step-by-step explanation:

<h3>i) simplify the complex fraction</h3>

<h3>ii) simplify the equation using cross multiplication</h3>


<h3>iii) swap the sides of the equation</h3>

<h3>iv) divide both sides of the equation by -6</h3>


<h3>v) simplify the fraction</h3>

The unit rate is 5cm per 1min
5:1
Answer:
C; None of the above.
Step-by-step explanation:
Pretend x=1, y=0, and z=2.
You have to match an answer to 1+0-2 (equals to -1).
The first equation would be 2+0+1. When you add them all together you get 3, and that isn't equivalent to -1, so therefore this one is not the answer.
The second equation becomes 1+2+0, and when you solve for the answer, you see that the answer is also 3, and so we can conclude that neither A or B matches with the equation above, so the answer is C, None of the above.
Answer:
A. 3√3/4
Step-by-step explanation:
√27x / √48 = (√9 * √3 *√x) / (√16 * √3) = (3 * √3 *√x) / (4 * √3)
divided √3 both side
= 3√x / 4
Answer:
2x = 40°
3x = 60°
4x = 80°
Step-by-step explanation:
2x+3x+4x = 180°
9x = 180
x = 20
SO
2x = 2(20) = 40°
3x = 3(20) = 60°
4x = 4(20) = 80°