Adam spends $9 for 1 bead and 1 sticker.
The cost of 1 bead is
18 the cost of 1 sticker.
- How much is the sticker?
- How much is the bead less than the sticker?
(a)
Cost of the bead = 1 u
Cost of the sticker = 8 u
Total cost of the bead and the sticker
= 1 u + 8 u
= 9 u
9 u = 9
1 u = 9 ÷ 9 = 1
Cost of the sticker
= 8 u
= 8 x 1
= $8
(b)
Cost of the bead less than the sticker
= 8 u - 1 u
= 7 u
= 7 x 1
= $7
Answer(s): (a) $8; (b) $7