The correct answer I would think would be C but I would try A because B does no have a proportion of 3/4.
We need 500 ml of alcohol mixture and 50 ml of water.
<u>Step-by-step explanation:</u>
The 50% concentration of the final solution is a result of mixing the 55% concentration with water, which is 0% concentration. Multiply the concentration of each liquid times the # of ml you will use, add these and divide by the total ml to get 50%
x = the number of ml of the 55% alcohol mixture
y = the number of ml of water
x + y = 550
Again, the 0 above represents the water which is 0% concentration
= 0.50
0.55 x = 275
x =
= 500
plug 500 into the equation x + y = 550
500 + y = 550
y = 50
Use 500 ml of the 55% solution and 50 ml of water.
Answer:
the answer would be A
Step-by-step explanation:
To answer any question like this divide the top into the bottom to get your answer
so 8 ÷ 3 = 2.66666666666 or 2.6 (repeating itself by 6)
X^2-12x+36 is a quadratic of the form ax^2+bx+c
It will have factors (x+j)(x+k) where jk=ac=36 and j+k=b=-12.
So j and k must be -6 and -6 so the quadratic factored is:
(x-6)(x-6)
Answer: 37 degrees
1. 98 degrees + 45 degrees= 143 degrees
2. 180 degrees (the area of a triangle) - 143 degrees= 37 degrees