Question

Li wants to add these items to her suitcase: a hairdryer (1.25 lb), a hand-held video game (0.6 lb), an extra video game (0.25 lb), and a music player (0.4 lb). Using the inequality x < 2.25, can she add all these items to the suitcase?

Answer 1

add up all of the weights and see if it's less than 2.25 or not
1.25+0.6+0.25+0.4 = 2.5
2.5 is not less than 2.25, so she can't add all of the items

Answer 2

no, all of those things add up to 2.5 which is not smaller than 2.25