Question

If you place one staple on an electronic balance, the balance still reads 0.0 grams. However, if you place

210 staples on the balance, it reads 6.80 grams. What is the mass of one staple?

Answer 1

210/6.8 = 1/x

210x = 6.8

x = 0.03238 grams = 32.4 milligrams

Answer 2

mass of 1 staple = 6.8 g/210 staples
mass of 1 staple = 0.032380952 g
Hope that helps!!