The correct inequality that could be used to solve this problem is:
1/3n + 4.5 ≤ 38.9, where n is equal to the number.
1/3n + 4.5 ≤ 38.9, where n is equal to the number.
2d + 3 ≥ 15, where d is the number of days.
Subtract 4.6 from both sides of the equation:
13n ≤ 34.5
Divide both sides of the equation by 13:
n ≤ 2.65
Therefore, the possible values of the number are n ≤ 2.65 or n less than or equal to 2.65.
Add 12 to both sides of the equation:
45n > 36
Divide both sides of the equation by 45:
n > 36/45
Simplify the right side:
n > 4/5
Therefore, the possible values of the number are n > 4/5 or n is greater than 4/5.
Subtract 213 from both sides of the equation:
10w ≥ 86
Divide both sides of the equation by 10:
w ≥ 8.6
Since w represents the number of weeks and it cannot be a decimal, we round it up to the nearest whole number:
w ≥ 9
Therefore, Ellie will have enough money saved after at least 9 weeks.