Hardware stores often sell nails by
weight. You need 4,000 nails for a
project, so you need to know how
many boxes to purchase.
Use counting by weight processes
and the data below to answer the
questions.
Mass of Nails + Box = 2510 grams
Mass of empty Box = 85 grams
Mass of 10 Nails = 25 grams
Mass of Nails = (Mass of Nails + Box) -
(Mass of Box)