Question

many elevators have a capacity of 3500 pounds. complete parts (a) through (c) below. a. if the average weight of a child is 70 pounds and the average weight of an adult is 140 pounds, write an inequality that states that x number of children and y number of adults cause the elevator to be overloaded. the inequality is ▼ 3500.

Explanation:

Step1: Calculate total weight of children and adults

The total weight of children is $70x$ (since each child weighs 70 pounds and there are $x$ children), and the total weight of adults is $140y$ (since each adult weighs 140 pounds and there are $y$ adults). The total weight of people in the elevator is $70x + 140y$.

Step2: Determine inequality for over - loading

Over - loading means the total weight exceeds the capacity of 3500 pounds. So the inequality is $70x+140y>3500$.

Answer:

$70x + 140y>3500$