A 10 centimeters cubed sample of salt having a mass of 8 grams is added to 20 centimeters cubed of water having a mass of 15 grams. What is the mass of the mixture?

m=m1+m2

To find the mass of the mixture, we need to add the masses of salt and water together.

Given information:
Mass of salt = 8 grams
Mass of water = 15 grams

To calculate the mass of the mixture, we add the masses of salt and water:

Mass of mixture = Mass of salt + Mass of water

Mass of mixture = 8 grams + 15 grams
Mass of mixture = 23 grams

Therefore, the mass of the mixture is 23 grams.