Adam pays $1.40 for a bead and a sticker.
The bead costs 6 times as much as the sticker.
- What is the cost of 1 bead?
- How much is the cost of 4 stickers and 5 beads?
(a)
Cost of a sticker = 1 u
Cost of a bead = 6 u
Total cost of a sticker and a bead
= 1 u + 6 u
= 7 u
7 u = 1.40
1 u = 1.40 ÷ 7 = 0.20
Cost of the bead
= 6 u
= 6 x 0.20
= $1.20
(b)
Cost of 4 stickers and 5 beads
= 4 x 1 u + 5 x 6 u
= 4 u + 30 u
= 34 u
= 34 x 0.20
= $6.80
Answer(s): (a) $1.20; (b) $6.80