Adam pays $36 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 5 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 = 36
1 u = 36 ÷ 12 = 3
Cost of 1 sticker
= 1 u
= $3
(b)
Cost of 1 bead
= 2 u
= 2 x 3
= $6
(c)
Cost of 5 beads and 2 stickers
= 5 x 2 u + 2 x 1 u
= 10 u + 2 u
= 12 u
= 12 x 3
= $36
Answer(s): (a) $3; (b) $6; (c) $36