We have 150 ml of 10% alcohol.How much 40% alcohol must be added to make a 30% solution?
.10 * 150 + .40x = .30 * (150 + x)15 + .40x = 45 + .3x.10x = 30x = 300 ml of 40% alcohol must be added to make a 30% alcohol solution.
Source:http://www.1728.org/mixture.htm
Answer:
7/6
Step-by-step explanation:
7/8 x 1 1/3 = 7/8 x 4/3 = 28/24 = 7/6
Comment if you have any questions! :D
Sorry I can't explain much for this here, but if need help feel free to comment
Answer:
x = 8
Step-by-step explanation:
As the triangle has 2 congruent angles, this means that their corresponding sides are of equal measure.
Therefore, -4 + 2x = 12
Add 4 to each side: 2x = 16
Divide both sides by 2: x = 8
If x is length of the diagonal then
x^2 = 3^2 + 4^2 = 25
x = sqrt25 = 5
Diagonal is 5 units long
Answer:
Step-by-step explanation:
The protractor has inner and outer readings. The inner reading has graduations with intervals of 10 degrees and the outer reading also has graduations with intervals of 10 degree. We will use the outer graduations to take readings. On the outer reading, the shortest graduations is in intervals of 1 degree while the shorter graduation is in intervals of 5 degrees. Therefore,
a) angle AFB is 55 degrees
b) angle BFE is 180 - 55 = 125 degrees.
c) angle DFA is 126 degrees
d) angle BFD is 60 + 5 + 6 = 71 degrees.
e) angle CFD is 36 degrees
