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.(2 points)

Question

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.

Answer 1

x+ (40+65x) ≥ 300, where x is the number of weeks Lily will need to save. Lily must save for at least 3 weeks to have at least $300. The inequality represents the total amount of money Lily has ($40 initially and $65 earned each week), which needs to be greater than or equal to $300.