Adam pays $32 for 6 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 2 beads and 3 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 6 stickers
= 6 x 1 u
= 6 u
Cost of 5 beads
= 5 x 2 u
= 10 u
Total cost of 6 stickers and 5 beads
= 6 u + 10 u
= 16 u
16 u = 32
1 u = 32 ÷ 16 = 2
Cost of 1 sticker
= 1 u
= $2
(b)
Cost of 1 bead
= 2 u
= 2 x 2
= $4
(c)
Cost of 2 beads and 3 stickers
= 2 x 2 u + 3 x 1 u
= 4 u + 3 u
= 7 u
= 7 x 2
= $14
Answer(s): (a) $2; (b) $4; (c) $14