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 rites the inequality 10w + 213 > 299, where w is the number of weeks, to help figure this out. Solve her inequality.
(1 point)
To solve the inequality, we need to isolate the variable w on one side of the inequality.
First, subtract 213 from both sides:
10w + 213 - 213 > 299 - 213
10w > 86
Next, divide both sides by 10 to solve for w:
10w/10 > 86/10
w > 8.6
Since w represents the number of weeks, Ellie needs to save for at least 9 weeks in order to have enough money saved to buy a phone.