Answer:
30 gallons of 20% acid solution should be mixed.
Step-by-step explanation:
Let x gallons of a 20% acid solution was mixed with 30 gallons of a 40% solution, to obtain a mixture of 30% acid solution.
Therefore, final volume of the solution will be (x + 30) gallons.
Now concept to solve this question is
20%.(x) + 40%.(30) = 30%.(x + 30)
0.20(x) + 0.40(30) = 0.30(x + 30)
0.20x + 12 = 0.30x + 9
0.30x - 0.20x = 12 - 9
.10x = 3
x = 
x = 30 gallons
Therefore, 30 gallons of the 20% acid solution should be mixed.
Answer:
What is the question?
Step-by-step explanation:
Answer:
I got u homie wassup with you
Answer:
<h2>GCF(10, 45) = 5</h2>
Step-by-step explanation:

Answer:
The answer is 2.67
Step-by-step explanation:
AB = 3
BD = 2
AC = 4
BD and DE are parallel, AB/BD= AC/CE
3/2 = 4/CE
CE= 4*2/3
CE=8/3
Lastly, if you put it into decimal form, it is 2.67