1 marble and 1 sticker cost $14.
1 bead and 1 marble cost $5.
1 bead and 1 sticker cost $17.
- How much is 1 bead?
- How much is 1 sticker?
- How much is 1 marble?
Cost of 2 marbles, 2 stickers and 2 beads
= 14 + 5 + 17
= $36
Cost of 1 marble, 1 sticker and 1 bead
= 36 ÷ 2
= $18
(a)
Cost of 1 bead
= 18 - 14
= $4
(b)
Cost of 1 sticker
= 18 - 5
= $13
(c)
Cost of 1 marble
= 18 - 17
= $1
Answer(s): (a) $4; (b) $13; (c) $1