How much water should we add to 20 kg of seawater to change its concentration from 3% to 2%?
explain

10 kg

Step-by-step explanation:

In 3% concentration of 20 kg of seawater, there will be kg of salt.

So, if it is a 2% solution of seawater,

Then 2 kg salt will be there in 100 kg solution.

So, 0.6 kg salt will be there in kg of solution.

So, to make a solution from 3% to 2% we have to add (30 - 20) = 10 kg of water with a 20 kg solution. (Answer)

your answer is a

step-by-step explanation:

4*4*4*4=256

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.