Adam pays $1.80 for a bead and a sticker.
The bead costs 5 times as much as the sticker.
- What is the cost of 1 bead?
- How much is the cost of 4 stickers and 2 beads?
(a)
Cost of a sticker = 1 u
Cost of a bead = 5 u
Total cost of a sticker and a bead
= 1 u + 5 u
= 6 u
6 u = 1.80
1 u = 1.80 ÷ 6 = 0.30
Cost of the bead
= 5 u
= 5 x 0.30
= $1.50
(b)
Cost of 4 stickers and 2 beads
= 4 x 1 u + 2 x 5 u
= 4 u + 10 u
= 14 u
= 14 x 0.30
= $4.20
Answer(s): (a) $1.50; (b) $4.20