Question

Luis weighed 80 pennies and found out they have a total mass of 240 grams. what is the mass of one penny?

Answer 1

3 grams because if you divide 240 by 80 you would get 3

Answer 2

240/80 = 3 grams. you can check your work by doing 80 pennies x 3 grams = 240 grams total.