algebra
posted by Anonymous .
How many liters of a 20% solution of acid should be added to 10 liters of a 30% solution of acid to obtain a 25% solution?
Equation:
Answer:

looks very similar to the question just posted by Lily.
let the amount of 30% solution we want to add be x l
now let's reason it through....
the volume of acid we have before adding is .3(10) l or 3 l
we are adding x l of a 20% solution so we are adding .2x l
but the final solution containing 10+x l is to contain 25% acid or .25(10+x) l of acid
so isn't our equation...
3 + .2x = .25(10+x) ?
solve for x and tell me what you got. 
How many liters of a 8% solution of acid should be added to 20 liters of a 60% solution of acid to obtain a 40% solution?
Respond to this Question
Similar Questions

journal assignment
how many liters of a 10%solution of acid should be added to 20 liters of 60%solution of acid to obtain a 50%solution? 
Algebra 2
How many liters of water must be added to 8 liters of a 40% acid solution to obtain a 10% acid solution? 
algebra
how many liters of water should be added to a 20 liters of 40% acid solution to obtain a 30% acid solution? 
Math
A chemist wants to create a solution that is 24% acid. How many liters of a 40% acid solution must be added to 50 liters of an 18% acid solution to obtain this 24% acid mixture? 
Math
A chemist wants to create a solution that is 24% acid. How many liters of 40% acid solution must be added to 50 liters of an 18% acid solution to obtain this 24% acid mixture? 
math
a chemist wants to create a solution that is 36% acid. How many liters of a 60% acid solution must be added to 30 liters of a 15% acid solution to obtain this 36% acid mixture? 
Algebra
A chemist wishes to mix a solution that is 4% acid. She has on hand 66 liters of a 2% acid solution and wishes to add some 8% acid solution to obtain the desired 4% acid solution. How much 8% acid … 
Algebra 2
One hundred liters of a 57.84% acid solution is obtained by mixing a 75% solution with a 42% solution. How many liters of each must be used to obtain the desired mixture? 
Algebra 2
One hundred liters of a 57.84% acid solution is obtained by mixing a 75% solution with a 42% solution. How many liters of each must be used to obtain the desired mixture? 
algebra
how many liters of distilled water must be added to 80 liters of 60% acid solution to obtain a 50 % acid solution?