How many liters of pure water should be mixed with 18 liters of a 12% saline solution to make a saline solution that is 3% salt?

4 liters because 12% of 18 liters is 2.16 and the goal is 3% so 3% of 18 is 0.54 so you do 2.16/0.54 which equals 4 liters of water

exa:

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3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

its 50 miles away from the starting point