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.
65x + 40 > 300, where x is the number of weeks Lily will need to save.
To solve for x:
1. Subtract 40 from both sides: 65x > 260
2. Divide by 65 on both sides: x > 4
Therefore, Lily must save for at least 5 weeks to have at least $300.