interesting question

Neha · 2006-12-27 05:12:08

How much of a 14% peroxide solution should be added to 89 ounces of a 47% peroxide solution to get a 29% solution?

LQ · 2006-12-27 05:24:23

Neha wrote:

How much of a 14% peroxide solution should be added to 89 ounces of a 47% peroxide solution to get a 29% solution?

Then: (89*.47 + x*.14)/(89+x) = .29 (x = weight of additional peroxide solution)

Since: Weight peroxide divided with total weight is the peroxide level.

89*.47 + x*.14 = .29(89 + x)
89*.47 - 89*.29 = x - x*.14 = 0.86x
89*(.47-.29)/0.86 = x

x = ounces

Peroxide is a poison, right?

**Corrected mistake. Sorry.**

Last edited by LQ (2007-01-02 00:38:48)

Toast · 2006-12-27 05:30:23

Maybe it's clearer to see how the equation came to be

Neha · 2006-12-27 05:50:45

89 * (.47 - .29) = 1.14x
89 * 0.18 = 1.14x
16.02 = 1.14x
x = 14.05263158
x = 14.05 ounces

krassi_holmz · 2006-12-27 07:50:05

Or exactly,

LQ · 2007-01-02 00:42:10

Actually, I was wrong, so you looked at me and you got it all wrong, and ever since, everything was wrong and it's not the first time and you should have seen it and spontanious things like this should be checked out and I hope your herbs did not die. But I didn't like antibug spray anyway. You could say it bugs me.

I'm sorry.

Last edited by LQ (2007-01-02 00:43:14)

Math Is Fun Forum

#1 2006-12-27 05:12:08

interesting question

#2 2006-12-27 05:24:23

Re: interesting question

#3 2006-12-27 05:30:23

Re: interesting question

#4 2006-12-27 05:50:45

Re: interesting question

#5 2006-12-27 07:50:05

Re: interesting question

#6 2007-01-02 00:42:10

Re: interesting question

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