Ellie is saving to buy a phone. She wants to have at least $299 saved before buying one. She currently has $213 saved, and she receives $10 a week as an allowance from her parents. After how many weeks will Ellie have enough money saved? Ellie writes the inequality 10w+213≥299 , where w is the number of weeks, to help figure this out. Solve her inequality.(1 point)
Responses
w≥860
w greater than or equal to 860
w≥86
w greater than or equal to 86
w≥8.6
w greater than or equal to 8.6
w≥51.2
The correct solution is:
w ≥ 8.6
This means that Ellie will have enough money saved after at least 8.6 weeks. Since Ellie cannot have a fraction of a week, the nearest whole number greater than or equal to 8.6 is 9. Therefore, Ellie will have enough money saved after 9 weeks.