Adam pays $3.00 for a sticker and a bead.
The sticker costs 5 times as much as the bead.
- What is the cost of 1 sticker?
- How much is the cost of 2 beads and 3 stickers?
(a)
Cost of a bead = 1 u
Cost of a sticker = 5 u
Total cost of a bead and a sticker
= 1 u + 5 u
= 6 u
6 u = 3.00
1 u = 3.00 ÷ 6 = 0.50
Cost of the sticker
= 5 u
= 5 x 0.50
= $2.50
(b)
Cost of 2 beads and 3 stickers
= 2 x 1 u + 3 x 5 u
= 2 u + 15 u
= 17 u
= 17 x 0.50
= $8.50
Answer(s): (a) $2.50; (b) $8.50