Katherine observed that five comic books had a mass of .257 kg. How many grams were 4 comic books?
how about just a simple ratio setup?
.257 kg = 257 g, behold the beauty of the metric system
5/257 = 4/x
5x = 4(257)
x = 4(257)/5 = ..... g
.257 kg = 257 g, behold the beauty of the metric system
5/257 = 4/x
5x = 4(257)
x = 4(257)/5 = ..... g