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anonymous
 one year ago
How many milliliters of 0.30% sugar solution must you add to 75mL of 4% sugar solution to get a 0.50% sugar solution?
anonymous
 one year ago
How many milliliters of 0.30% sugar solution must you add to 75mL of 4% sugar solution to get a 0.50% sugar solution?

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Kash_TheSmartGuy
 one year ago
Best ResponseYou've already chosen the best response.0Please post it in Chemistry. This is math.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but this is a math problem, I'm supposed to use rational functions to solve it

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.175 ml of a 4% solution of sugar has 0.04(75 ml) amount of sugar. You are adding x ml of the 0.50% solution to it. How much sugar is there in x ml of 0.50% solution?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0.005x ml of sugar in the 0.50% solution

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1You need to add x amount of the 0.3% solution. In x ml of solution, the 0.3% solution has 0.003x amount of sugar. Ok?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now when you add the 75 ml of solution to x ml of 0.3% solution, the amount of sugar will be: \(3 + 0.003x\) Right?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.14% * 75 ml = 3 ml (this amount of sugar comes from the 4% solution.) 0.003x (this amount of sugar comes from the 0.3% solution) We add the sugar, and we get: \(3 + 0.003x\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay I understand now

anonymous
 one year ago
Best ResponseYou've already chosen the best response.04% * 75 ml = 3 ml (this amount of sugar comes from the 4% solution.) 0.003x (this amount of sugar comes from the 0.3% solution) We add the sugar, and we get: 3+0.003x yup he is correct next time post in chemestry though but i understand why you did it in math

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1The concentration of sugar is the amount of sugar divided by the total volume. We divided the amount of sugar, 3 + 0.003x by x + 75 and we want that to be 0.5% \(\dfrac{3 + 0.003x}{75 + x} = 0.005\)

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1This is a math problem that can very well be in a math book under rational equations.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The concentration of sugar is the amount of sugar divided by the total volume. We divided the amount of sugar, 3 + 0.003x by x + 75 and we want that to be 0.5% 3+0.003x/75+x =0.005 do you get it

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1math deals with many situations, such as concentrations of solutions.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now you solve the equation to find x, the volume of the 0.3% solution needed.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got x=1,312.5 Is that correct?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh! ok, thanks so much
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