Bryan has some money to buy some stickers.
If he buys 7 stickers, he will have $15 left.
If he buys 12 stickers, he will have $10 left.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 12 - 7
= 5
Difference in the amount to pay in both scenarios
= 15 - 10
= 5
Bryan needs $5 to buy 5 extra stickers.
Cost of 5 stickers = $5
Cost of 1 sticker = 5 ÷ 5 = $1
(b)
Amount that he has
= Cost of 7 stickers + 15
= 7 x 1 + 15
= 7 + 15
= $22
Answer(s): (a) $1; (b) $22