Adam pays $28 for 2 beads and 6 stickers.
2 beads cost as much as 1 sticker.
- How much is 1 bead?
- How much is 1 sticker?
- How much is 4 stickers and 2 beads?
(a)
Choose the smaller group to be 1 u.
Cost of 1 bead = 1 u
Cost of 2 beads = 2 u
Cost of 1 sticker = 2 u
Cost of 2 beads
= 2 x 1 u
= 2 u
Cost of 6 stickers
= 6 x 2 u
= 12 u
Total cost of 2 beads and 6 stickers
= 2 u + 12 u
= 14 u
14 u = 28
1 u = 28 ÷ 14 = 2
Cost of 1 bead
= 1 u
= $2
(b)
Cost of 1 sticker
= 2 u
= 2 x 2
= $4
(c)
Cost of 4 stickers and 2 beads
= 4 x 2 u + 2 x 1 u
= 8 u + 2 u
= 10 u
= 10 x 2
= $20
Answer(s): (a) $2; (b) $4; (c) $20
