Question

Dr. Jekyll has 180 mL of solution that is 20% acid. How many mL of

Answer 1

Answer:

50%

Step-by-step explanation:

So here's what I think :

180 x 20% = 36

This 36 isn't that important.

20% + 30% = 50%

Answer 2

Answer: 54 mL

Step-by-step explanation: First, you need to find how many milliliters 10% is. To do this, divide 180 by 10, which equals 18. Then, since it needs to be thirty percent, times 18 by 3, which equals 54 mL. Hope this helps.