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

40 + 65x ≥ 300, where x is the number of weeks.
Solve: 65x ≥ 260 → x ≥ 4.
Lily must save for at least 4 weeks to have at least $300.