5.3 Linear Inequalities in One Variable with Applications
Solution sets drawn on a number line, the sign flip when multiplying by a negative, and phrases like at least turned into symbols.
Contemporary Mathematics, 5.3 Linear Inequalities in One Variable with Applications
3 exercises
5.3 Exercise 9
A teacher won a mini grant of $4,000 to buy tablet computers for their classroom. The tablets they would like to buy cost $254.12 each, including tax and delivery. What is the maximum number of tablets the teacher can buy?
5.3 Exercise 11
The local community college charges $113 per credit hour. Your budget is $1,500 for tuition this fall semester. What number of credit hours could you take this fall?
5.3 Exercise 13
Brenda’s best friend is having a destination wedding and the event will last 3 days and 3 nights. Brenda has $500 in savings and can earn $15 an hour babysitting. She expects to pay $350 for airfare, $375 for food and entertainment, and $60 a night for her share of a hotel room. How many hours must she babysit to have enough money to pay for the trip?
Adapted from Contemporary Mathematics © 2023 Rice University. Licensed under CC BY 4.0. Source: Contemporary Mathematics. Imported at revision fa7c1a1.