Adam pays $2.00 for a bead and a sticker.
The bead costs 9 times as much as the sticker.
- What is the cost of 1 bead?
- How much is the cost of 2 stickers and 3 beads?
(a)
Cost of a sticker = 1 u
Cost of a bead = 9 u
Total cost of a sticker and a bead
= 1 u + 9 u
= 10 u
10 u = 2.00
1 u = 2.00 ÷ 10 = 0.20
Cost of the bead
= 9 u
= 9 x 0.20
= $1.80
(b)
Cost of 2 stickers and 3 beads
= 2 x 1 u + 3 x 9 u
= 2 u + 27 u
= 29 u
= 29 x 0.20
= $5.80
Answer(s): (a) $1.80; (b) $5.80