To solve this problem, let us first assign variables. Let
us say that:
x = volume of 67% herbicide solution
y = volume of 46% herbicide solution
The total volume should be 42 liters therefore:
x + y = 42
x = 42 – y --> 1
The component mass balance on the pure herbicide would
be:
0.67 x + 0.46 y = 0.55 (42) --> 2
Substituting equation 1 to 2:
0.67 (42 – y) + 0.46 y = 23.1
28.14 – 0.67 y + 0.46 y = 23.1
- 0.21 y = - 5.04
y = 24 L
Calculating for x using equation 1:
x = 42 – 24
x = 18 L
Therefore we only need 18 L of the 67% herbicide
solution.
Answer:
A. 18 L
Answer:
12/37
Step-by-step explanation:
sin alpha = opposite side/ hypotenuse
sin alpha = 12/37
Do 7x4= 28 then add z
7x8= 56 then add b
so your answer is 28z + 56b
The correct answer is y=(2/3)x+5.
Answer:
y = 3/8x +29/8
Step-by-step explanation:
First we need to find the slope
m= (y2-y1)/(x2-x1)
= (1-4)/(-7-1)
= -3 /-8
= 3/8
Then we can use the slope intercept form of the equation of a line
y = mx+b where m is the slope and b is the y intercept
y = 3/8x +b
Substitute a point into the equation to find b
4 = 3/8(1) +b
Subtract 3/8 from each side
32/8 -3/8 = 3/8-3/8+b
29/8 = b
Substitute b back into the equation
y = 3/8x +29/8
