Answer:
![B - A = -6](https://tex.z-dn.net/?f=B%20-%20A%20%3D%20-6)
Step-by-step explanation:
Given
Point: (-7,2)
x + 3y = -5
Required
Find B- - A in Ax + By = 3
To start with; we need to calculate the slope of x + 3y = -5
![x + 3y = -5](https://tex.z-dn.net/?f=x%20%2B%203y%20%3D%20-5)
Subtract x from both sides
![x - x + 3y = -5 - x](https://tex.z-dn.net/?f=x%20-%20x%20%2B%203y%20%3D%20-5%20-%20x)
![3y = -5 - x](https://tex.z-dn.net/?f=3y%20%3D%20-5%20-%20x)
Divide both sides by 3
![\frac{3y}{3} = -\frac{5}{3} - \frac{x}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B3y%7D%7B3%7D%20%3D%20-%5Cfrac%7B5%7D%7B3%7D%20-%20%5Cfrac%7Bx%7D%7B3%7D)
![y = -\frac{5}{3} - \frac{x}{3}](https://tex.z-dn.net/?f=y%20%3D%20-%5Cfrac%7B5%7D%7B3%7D%20-%20%5Cfrac%7Bx%7D%7B3%7D)
The slope of the line is the coefficient of x
Slope = ![- \frac{1}{3}](https://tex.z-dn.net/?f=-%20%5Cfrac%7B1%7D%7B3%7D)
The question says line Ax + By = 3 is parallel to line x + 3y = -5; This means that they have the same slope of ![- \frac{1}{3}](https://tex.z-dn.net/?f=-%20%5Cfrac%7B1%7D%7B3%7D)
Having calculated the slope, next is to calculate the equation of the line using the following formula;
![m = \frac{y - y_1}{x - x_1}](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7By%20-%20y_1%7D%7Bx%20-%20x_1%7D)
Where m is the slope; m =
; ![(x_1, y_1) = (-7,2)](https://tex.z-dn.net/?f=%28x_1%2C%20y_1%29%20%3D%20%28-7%2C2%29)
Substitute these values in the formula above; the formula becomes
![-\frac{1}{3} = \frac{y - 2}{x - -7}](https://tex.z-dn.net/?f=-%5Cfrac%7B1%7D%7B3%7D%20%3D%20%5Cfrac%7By%20-%202%7D%7Bx%20-%20-7%7D)
![-\frac{1}{3} = \frac{y - 2}{x +7}](https://tex.z-dn.net/?f=-%5Cfrac%7B1%7D%7B3%7D%20%3D%20%5Cfrac%7By%20-%202%7D%7Bx%20%2B7%7D)
Cross Multiply
![-1(x+7) = 3(y-2)](https://tex.z-dn.net/?f=-1%28x%2B7%29%20%3D%203%28y-2%29)
Open brackets
![-x - 7 = 3y - 6](https://tex.z-dn.net/?f=-x%20-%207%20%3D%203y%20-%206)
Add x to both sides
![x - x - 7 = 3y - 6 + x](https://tex.z-dn.net/?f=x%20-%20x%20-%207%20%3D%203y%20-%206%20%2B%20x)
![-7 = 3y - 6 +x](https://tex.z-dn.net/?f=-7%20%3D%203y%20-%206%20%2Bx)
Add 6 to both sides
![-7 + 6 = 3y -6 + 6 + x](https://tex.z-dn.net/?f=-7%20%2B%206%20%3D%203y%20-6%20%2B%206%20%2B%20x)
![-1 = 3y + x](https://tex.z-dn.net/?f=-1%20%3D%203y%20%2B%20x)
Multipby both sides by -3
![-3(-1) = -3(3y + x)](https://tex.z-dn.net/?f=-3%28-1%29%20%3D%20-3%283y%20%2B%20x%29)
![3 = -9y - 3x](https://tex.z-dn.net/?f=3%20%3D%20-9y%20-%203x)
![-9y - 3x = 3](https://tex.z-dn.net/?f=-9y%20-%203x%20%3D%203)
![-3x - 9y = 3](https://tex.z-dn.net/?f=-3x%20-%209y%20%3D%203)
Comparing the above to Ax + By = 3
![Ax = -3x\\A = -3](https://tex.z-dn.net/?f=Ax%20%3D%20-3x%5C%5CA%20%3D%20-3)
![By = -9y\\B = -9](https://tex.z-dn.net/?f=By%20%3D%20-9y%5C%5CB%20%3D%20-9)
![B - A = -9 - (-3)](https://tex.z-dn.net/?f=B%20-%20A%20%3D%20-9%20-%20%28-3%29)
![B - A = -9 + 3](https://tex.z-dn.net/?f=B%20-%20A%20%3D%20-9%20%2B%203)
![B - A = -6](https://tex.z-dn.net/?f=B%20-%20A%20%3D%20-6)
Answer:
7/25
Step-by-step explanation:
if 7% are defective and they order 25% of their lightbulbs from Baker that will be your answer.
Thank you sooo much Maddi441
The width is basically the diameter, and all you have to do is divide by 2 to get the radius.B is the name for base. I think the formula for a triangle is 1/2 bh. and for the circle c=pieD i hope that helped!
Answer:
Blue Ballon = 16
Yellow Ballon = 23
Green Ballon = 26
Red Ballon = 32
Total puffs = 1000
23y + 16(2y) + 32y + 26(y/2) = 1000
23y + 32y + 32y + 13y = 1000
100y = 1000
y = 1000/10
y = 10
Therefore, russell
filled 10 yellow balloons.