Answer:
22.86 ml.
Step-by-step explanation:
Let x ml of 5% sulfuric solution must Molly add to 20ml of 20% solution to get a 12% solution.
Now, x ml of 5% sulfuric acid solution has pure acid of
ml.
Again, 20 ml of 20% sulfuric acid solution has pure acid of
ml.
Therefore, we can write the equation as
⇒ 0.05x + 4 = 2.4 + 0.12x
⇒ 0.07x = 1.6
⇒ x = 22.86 ml. (Answer) (Approximate value)
Answer:
plug in -3 and 2 into the equations you should get two different numbers
Step-by-step explanation:
3(-3)+2(-3)=24
3(2)+2(2)=24
What is the decimal to this fraction