Lily is saving up to buy a cellphone. She needs to save at least $300 before she is able to buy the phone.
Her grandfather gives her $40, and she earns $65 tutoring after school each week. Write an inequality for the number of weeks Lily will need to save to have at least $300, and describe the solutions.
_______x+ _______ _>_ _______ where x is the number of weeks Lily will need to save. Lily must save for at least _____ weeks to have at least $300
Let's write the inequality:
65x + 40 ≥ 300
The solutions to this inequality represent the number of weeks (x) Lily will need to save in order to have at least $300. Lily must save for at least 4 weeks to have at least $300.