1 bead and 1 marble cost $14.
1 sticker and 1 bead cost $10.
1 sticker and 1 marble cost $16.
- How much is 1 sticker?
- How much is 1 marble?
- How much is 1 bead?
Cost of 2 beads, 2 marbles and 2 stickers
= 14 + 10 + 16
= $40
Cost of 1 bead, 1 marble and 1 sticker
= 40 ÷ 2
= $20
(a)
Cost of 1 sticker
= 20 - 14
= $6
(b)
Cost of 1 marble
= 20 - 10
= $10
(c)
Cost of 1 bead
= 20 - 16
= $4
Answer(s): (a) $6; (b) $10; (c) $4