Problema Solution
Helen received a gift card for her birthday. She spent 1/3 of the card on lunch and 1/4 of remaining amount on dessert. After she spent $3..50 on tip she had $4.00 left. What was the amount of card in dollars?
Answer provided by our tutors
let 'x' represent the amount of the gift card
we assume she was able to use the card to pay for the tip
"1/4 of remaining amount" after 1/3 was already spent: (1/4)(x-x/3)
x = x/3 + (1/4(x-x/3) + 3.5 + 4.
solving for 'x' we have x=15
the amount on the card was $15