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.

1 answer

x+ 1/65(40) ≥_ , where x is the number of weeks Lily will need to save. Lily must save for at least 5 weeks to have at least $300.

The inequality represents that the number of weeks Lily needs to save, represented by x, multiplied by her earnings from tutoring after school each week, which is $65, added to the initial amount of $40 given by her grandfather, must be greater than or equal to $300.

The solution states that Lily must save for at least 5 weeks in order to have at least $300.