Your correct, +1 would give you one point on y line then go down and over to get your slope, so yes you are correct, good job.
Answer:
c + d = 400
0.2c + 0.5d = 156
Step-by-step explanation:
Let
c = number of liters of 20% acid solution
d = number of liters of 50% acid solution.
c + d = 400 (1)
0.2c + 0.5d = 400(0.39)
0.2c + 0.5d = 156 (2)
From (1)
c = 400 - d
Substitute c = 400 - d into (2)
0.2c + 0.5d = 156 (2)
0.2(400 - d) + 0.5d = 156
80 - 0.2d + 0.5d = 156
- 0.2d + 0.5d = 156 - 80
0.3d = 76
d = 76/0.3
d = 253.33 liters
Substitute d = 253.33 into (1)
c + d = 400
c + 253.33 = 400
c = 400 - 253.33
c = 146.67 liters
The volume of figure A is 18 cu ft
Hope this is right for y’a :)
For inverse variation, we use the equation y = k/x, again, with k as the constant of proportionality. <span>When one variable increases the other decreases in proportion so that the product is unchanged. Therefore, it would be the last option the correct answer.
y = k / x
2 = k / 4
k = 8</span>
Answer: The graph is attached.
Step-by-step explanation:
By definition, the line intersects the y-axis when 
.
Then, in order to find the y-intercept, substitute into the equation and solve for "y":
By definition, the line intersects the x-axis when 
.
Then, in order to find the x-intercept, you can substitute into the equation and then you must solve for "x". Then you get:
Knowing that the line passes through the points 
and 
, you can graph it (The graph is attached).
