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Charlie mixes 15 liters of 17% acid solution with a 29% acid solution, which results in 23% acid solution.

Let x represent the number of liters of 29% solution used and let y represent the number of liters of mixture. Which system of equations can be used to find the number of liters of 29% acid solution in the mixture

Respuesta :

irspow
(15(.17)+.29x)/(15+x)=.23

2.55+.29x=3.45+.23x

.06x=.9

x=15

So 15L of the 29% solution was added to the 15L of 17% solution to make 
30L of 23% solution.


ogbe2k3

Answer:

The number of liters of 29% acid solution is 15

Step-by-step explanation:

Let x represent the number of liters of 29% solution

Let Y represent the number of liters of mixture

Charlie mixes 15 liters of 17% acid

Resulting solution of acid = 23%

29x+0.17(15)= 0.23(15+x)

Then

29x+2.55=3.45+0.23

29x - 0.23x=3.4 - 2

6x =0.9

x=15

Therefore the number of liters of 29% acid solution is 15

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