Adam has some money to buy some stickers.
If he buys 8 stickers, he will have $6 left.
If he buys 17 stickers, he will need $3 more.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 17 - 8
= 9
To buy 9 stickers, he needs to use $6 that is left and get an extra of $3.
Difference in the amount to pay in both scenarios
= 6 + 3
= $9
Adam needs $9 to buy 9 extra stickers .
Cost of 9 stickers = $9
Cost of 1 sticker = 9 ÷ 9 = $1
(b)
Amount that he has
= Cost of 8 stickers + 6
= 8 x 1 + 6
= 8 + 6
= $14
Answer(s): (a) $1; (b) $14