Answer:
B
Step-by-step explanation:
The answer is B as they have already collected 30 and the Right is the amount they still have to get
it would be amazing if you marked this brainliest :)
Answer:
(-6,2)
Step-by-step explanation:
![x = - 6 \\ x - y = - 8](https://tex.z-dn.net/?f=x%20%3D%20%20-%206%20%5C%5C%20x%20-%20y%20%3D%20%20-%208)
<u>Substitution</u>
Substitute x = -6 from the first equation in the second equation.
![- 6 - y = - 8 \\ - 6 + 8 = y \\ 2 = y](https://tex.z-dn.net/?f=%20-%206%20-%20y%20%3D%20%20-%208%20%5C%5C%20%20-%206%20%20%2B%208%20%3D%20y%20%5C%5C%202%20%3D%20y)
Normally, we have to substitute either x-term or y-term in one of the equation to get another term. For this situation, we already know the value of x so It is not necessary to substitute the y-value.
<u>Answer</u><u> </u><u>Check</u>
We have to check the answer to make sure that we have got the right answer.
We can check the answer by substituting both x-value and y-value in the equation.
![x - y = - 8](https://tex.z-dn.net/?f=x%20-%20y%20%3D%20%20-%208)
Substitute x = -6 and y = 2 in the equation.
![- 6 - 2 = - 8 \\ - 8 = - 8](https://tex.z-dn.net/?f=%20-%206%20-%20%202%20%3D%20%20-%208%20%5C%5C%20%20-%208%20%3D%20%20-%208)
The equation is true. Therefore, our answer is (-6,2)
Answer:
Slope=6
Explanation:
Given a line that passes through the point (0,-4) and (1, 2), we are required to find the slope.
Whenever we are given two points on a line, we can find the slope of such a line by using the formula below:
![m=\frac{y_2-y_1}{x_2-x_1}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7By_2-y_1%7D%7Bx_2-x_1%7D)
First, label the points.
![\begin{gathered} (x_1,y_1)=(0,-4) \\ (x_2,y_2)=(1,2) \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%28x_1%2Cy_1%29%3D%280%2C-4%29%20%5C%5C%20%28x_2%2Cy_2%29%3D%281%2C2%29%20%5Cend%7Bgathered%7D)
Substitute the values into the formula.
![m=\frac{2-(-4)}{1-0}=\frac{2+4}{1}=6](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B2-%28-4%29%7D%7B1-0%7D%3D%5Cfrac%7B2%2B4%7D%7B1%7D%3D6)
The slope of the line is 6.
Answer:
Step-by-step explanation:
First, add 3 to both sides:
-5 = -6∛(x²)
Next, divide both sides by -6, to isolate ∛(x²):
5/6 = ∛(x²)
Eliminate the radical by cubing both sides:
5³
---- = x²
6³
Finally, take the square root of both sides. This will isolate x. There will be two roots: one +, the other -.
x = ±√(5³/6³)
This simplifies to: ± (5/6)∛(5/6).
4 of the original boards have a summed length of 20 units. 5 x 4 = 20.
Since 2/5 is left from each board, you simply add them until the 2's add to 20.
So, 2 x 10 = 20. Hence, there are 10 2/5 boards.
That's just 4 of the boards that the 2/5 make up, but that should also mean that there are 10 3/5 boards as well.
30/5 + 20/5 = 50/5
Reduction = 10
The carpenter started with 10 5/5 boards.
:D