1~ a.) Solve a - 9 = 20

Question

b.) Solve b - 9 > 20
c) How is solving the equation in part a similar to solving the inequality in part b?
d.) How are the solutions different?

2~ Briana is allowed to watch no more than 5 hours of T.V a week. So far this week, she has watched 1.5 hours. Write and solve an inequality to show how many hours of T.V Briana can still watch this week.

Answer 1

1. An inequality is treated just like an equation, except that multiplying/dividing by a negative value reverses the carat (< to >).

2. 5 ≥ h - 1.5