Adam pays $48 for 2 stickers and 5 beads.
2 stickers cost as much as 1 bead.
- How much is 1 sticker?
- How much is 1 bead?
- How much is 4 beads and 2 stickers?
(a)
Choose the smaller group to be 1 u.
Cost of 1 sticker = 1 u
Cost of 2 stickers = 2 u
Cost of 1 bead = 2 u
Cost of 2 stickers
= 2 x 1 u
= 2 u
Cost of 5 beads
= 5 x 2 u
= 10 u
Total cost of 2 stickers and 5 beads
= 2 u + 10 u
= 12 u
12 u = 48
1 u = 48 ÷ 12 = 4
Cost of 1 sticker
= 1 u
= $4
(b)
Cost of 1 bead
= 2 u
= 2 x 4
= $8
(c)
Cost of 4 beads and 2 stickers
= 4 x 2 u + 2 x 1 u
= 8 u + 2 u
= 10 u
= 10 x 4
= $40
Answer(s): (a) $4; (b) $8; (c) $40
