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 inequality. (1 point) where w is the number of weeks, to help figure this out. Solve her
w >= 8.6
w >= 860
w >= 86
w >= 51.2
To solve the inequality, you need to isolate the variable w.
10w + 213 >= 299
First, subtract 213 from both sides of the inequality:
10w >= 299 - 213
Simplifying the right side of the inequality:
10w >= 86
Then, divide both sides of the inequality by 10:
w >= 8.6
Therefore, Ellie will have enough money saved after at least 9 weeks.