Question

isabella earns a weekly amount, n, from selling lemonade and receives an additional amount of $10 from her parents each week. after 8 weeks, she has $240. how much does she earn per week from selling lemonade? a $20 b $230 c $31.25 d $28.75

Explanation:

Step1: Define total earnings per week

Isabella's total weekly earnings are her lemonade earnings ($n$) plus $10$ from parents, so $n + 10$ per week.

Step2: Set up equation for 8 weeks

After 8 weeks, total is $8(n + 10) = 240$.

Step3: Solve for $n$

Divide both sides by 8: $n + 10 = \frac{240}{8} = 30$.
Subtract 10: $n = 30 - 10 = 20$.

Answer:

A. $20$