Problema Solution
After Jessica received her allowance for the week, she went shopping with some friends. She spent half of her allowance on a book. Then she bought a snack for $2.25. She had $3.00 left. How much was her allowance?
Answer provided by our tutors
let 'x' represent the amount of her allowance, then 'x/2' represents the cost of the book she purchased
3 = x - x/2 - 2.25
solving for 'x' we have:
x=10.5
her allowance was $10.50