Answer:

Step-by-step explanation:
In the slope- intercept form (y= mx +c), the coefficient of x is the slope of the graph.
y= 3x +4
Slope of given line= 3

The product of the slopes of perpendicular lines is -1.
![(3)[ \frac{d - 4}{5 - ( - 2)} ] = - 1](https://tex.z-dn.net/?f=%20%283%29%5B%20%5Cfrac%7Bd%20-%204%7D%7B5%20-%20%28%20-%202%29%7D%20%5D%20%3D%20%20-%201)
Divide both sides by 3:


Cross multiply:
3(d -4)= -1(7)
Expand:
3d -12= -7
Add 12 on both sides:
3d= 12 -7
3d= 5
Divide both sides by 3:

Answer:
1/2 or 0.5 dollars per kg of apples
The first thing to do is to find out how much a kg of apples sells for, since the question is only asking for the selling amount of a single kg. Nothing else. Each trip gets 300 dollars and delivers fifty packs. So each Pack, or P = 300/50, or P = 6 dollars
And each pack contains 12 kg of apples, so if P = 6 dollars and P = 12 kg of apples, then 6 dollars = 12 kg of apples
then 1 kg apples = 6/12, or 1/2.
So a single Kg of apples cost 0.5 dollars
BD = 2 AE
10 x + 2 = 2 * ( 3 x + 5 )
10 x + 2 = 6 x + 10
10 x - 6 x = 10 - 2
4 x = 8
x = 8 : 4
x = 2
And the line AC is equal to BD.
AC = 10 * 2 + 2 = 20 + 2 = 22
Answer:
3. 22
<h3>
Answer: 3/5</h3>
Work Shown:
3 blue + 3 red = 6 pens that are either blue or red
4 black + 3 blue + 3 red = 10 pens total
6/10 = 3/5 is the probability of selecting either blue or red
3/5 = 0.60 = 60%