Cora has 25 ounces of 20% boric acid solution which she wishes to dilute to a 10% solution. How much...

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Tanong

Cora has 25 ounces of 20% boric acid solution which she wishes to dilute to a 10%
solution.
How much water does she have to add in order to obtain the 10%
solution?​

Mga sagot sa #1 sa Tanong: Cora has 25 ounces of 20% boric acid solution which she wishes to dilute to a 10%
solution.
How much water does she have to add in order to obtain the 10%
solution?​

Answer:

25oz

Step-by-step explanation:

let x be the amount of water added

25(20%) = 10% (25+x)

5=2.5 +0.1x

5-2.5=0.1x

2.5=0.1 x

[tex]frac{2.5}{0.1}[/tex] = x

25 ounces =x

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