Question

A math textbook has a mass that is 400 grams greater

than a science textbook. If the science textbook has a
mass of 2 kilograms, what is the mass of the math
textbook, in kilograms?

Answer 1

0.8

Explanation:

because 400g = 0.4kg

and 0.4kg x 2 = 0.8

hope this helped :)