Answer:
half. what is half of 23? 11.5 inches
Step-by-step explanation:
Answer:
1. 8.4 in 2. 33.6
Step-by-step explanation:
Answer: 33 gallons
Step-by-step explanation:
We initially have 130 gallons of a
acid solution and we need to change it to a
acid solution, and for that it is necessary to evaporate
gallons of water.
So, this situation can be mathemtically expressed as follows:

Then:

Isolating
:


Hence, we need to evaporate 33 gallons of water.