The weight of a person and his luggage should not be greater than 150kg when travelling;
(i) If the weight of the laggugge is W and that of a person is 70kg. write an inequality to represent this information
(ii) Solf the inequality to find the range of the weight of the lagguge
70+W <= 150
(i) Let's denote the weight of the luggage as W. According to the given information, the weight of a person is 70kg. Therefore, the total weight should not exceed 150kg. We can represent this as an inequality:
W + 70 ≤ 150
(ii) To solve the inequality, we first subtract 70 from both sides of the equation:
W + 70 - 70 ≤ 150 - 70
This simplifies to:
W ≤ 80
So, the weight of the luggage (W) must be less than or equal to 80kg in order for the total weight to be within the limit of 150kg.