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

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)

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+2≥5, 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 solutions to this inequality are all the whole numbers greater than or equal to 3. This means that Lily could save for 3 weeks and have exactly $300, or she could save for more weeks and have more than $300.