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July 23, 2014

July 23, 2014

Posted by **Anna** on Thursday, November 5, 2009 at 4:34pm.

How many liters of the 25% orange juice should be in mixture?

How many liters of the 5% orange juice should be in mixture?

How can I solve this problem, or what is the best method??

I started the problem and got stuck, I first started with x= amount of 25%

and y= amount of 5%

x+y=20L

0.25x+0.05y=54

100(0.25x+0.05y)=100(54)

25x+5y=5400

is this correct so far? and I am stuck here...

- math -
**Reiny**, Thursday, November 5, 2009 at 5:48pmWhere does the 54 come from ?

The second equation should have been

.25x + .05y = .24(20)

times 100 --->

25x + 5y = 480

now multiply your first by 5

5x + 5y = 100

subtract this from the other one...

20x = 380

x = 19

then y = 1

- math -
**Anna**, Thursday, November 5, 2009 at 5:58pmohhh... thank you.... no wonder why I got stuck.. I missed a step and miscalculated thank you so much

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