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What fraction of 10 percent alcohol should be mixed with 70 percent alcohol to obtain 50 percent alcohol?
Wiki User
∙ 11y ago
2/3 of 70% and 1/3 of 10%
Wiki User
∙ 11y ago
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How do you change a percent into a fraction?
One way to change a percent into a fraction is to take the percent number and but the denominator as 100. For example if the percent number was 43 then that would be your numerator and 100 would be your denominator so it should be 43/100. Percent means out of 100 so your denominator should be 100 unless you simplify your fraction.
12 percent as a fraction?
12 percent means 12 out of 100. You could write it as 12/100. You should reduce this though to 3/25.
How do you figure percent?
In mathematics, a percentage is a way of expressing a number as a fraction of 100. Per cent meaning "per hundred". It is often denoted using the percent sign, "%". For example, 45 % (read as "forty-five percent") is equal to 45 / 100, or 0.45. Percentages are used to express how large one quantity is relative to another quantity. The first quantity usually represents a part of, or a change in, the second quantity, which should be greater than zero. For example, an increase of $ 0.15 on a price of $ 2.50 is an increase by a fraction of 0.15 / 2.50 = 0.06. Expressed as a percentage, this is therefore a 6 percent increase.
What does it mean if a project has a Percent Spent of 90 percent Percent Scheduled of 85 percent and a percent Complete of 95 percent?
The project is in good shape and should finish early and within budget
What decimal fraction of 13?
decimal fraction of 13 = 130/10 The de nomi nator should be i n the power of 10.
How much water should be mixed to 12ml of alcohol to obtain a 12 percent of alcohol solution?
88 ml
What form does your answer should be when you change percent to A fraction?
100%-= What Fraction and What decimal point ?
How do you change a percent into a fraction?
One way to change a percent into a fraction is to take the percent number and but the denominator as 100. For example if the percent number was 43 then that would be your numerator and 100 would be your denominator so it should be 43/100. Percent means out of 100 so your denominator should be 100 unless you simplify your fraction.
What fraction should you multiply 57 percent by?
57/100
How many ml of water should be added to 95 percent ethyl alcohol to make 1 liter of a 30 percent ethyl alcohol solution?
684 ml
What is 15 percent expressed as a fraction?
15 percent is 15/100, which should be reduced down to 3/20
What should the minimum percent of Isopropyl Alcohol be to prevent contamination of an IV?
70%
How much of an 18 percent solution of sulfuric acid should be added to 360 ml of a 10 percent solution to obtain a 15 percent solution?
600ml.
Changing a fraction to a percent?
You should divide the top of the fraction by the bottom, multiply by 100 and add a "%" sign. I'm pretty sure this is what u do
How much of water should be add to obtain a solution that is twenty percent antifreeze?
80% water
How many gallons each of 25 percent alcohol and 35 percent alcohol should be mixed to obtain 20 gallons of 32 percent alcohol?
The question is best solved using basic algebra. You need 20 gallons of 32% alcohol. This will contain 0.32*20 = 6.4 gallons of pure alcohol. Now suppose you have X gallons of 25% alcohol in the mixture. That contains 0.25X gallons of pure alcohol. Also, since you have 20 gallons in total, you must have 20-X gallons of the 35% alcohol. This will contain 0.35*(20-X) = 7 - 0.35X gallons of pure alcohol. Then, the total amount of pure alcohol is 0.25X + 7 - 0.35X = 7 - 0.1X gallons. So you have 7 - 0.1X = 6.4 or 0.6 = 0.1X or X = 6. So the answer is 6 gallons of 25% alcohol and 14 gallons of the stronger stuff!
How many liters of a 20 percent solution of acid should be added to 10 liters of a 30 percent solution of acid to obtain a 25 percent solution?
10 liters.
