1 bead and 1 sticker cost $20.
1 marble and 1 bead cost $16.
1 marble and 1 sticker cost $20.
- How much is 1 marble?
- How much is 1 sticker?
- How much is 1 bead?
Cost of 2 beads, 2 stickers and 2 marbles
= 20 + 16 + 20
= $56
Cost of 1 bead, 1 sticker and 1 marble
= 56 ÷ 2
= $28
(a)
Cost of 1 marble
= 28 - 20
= $8
(b)
Cost of 1 sticker
= 28 - 16
= $12
(c)
Cost of 1 bead
= 28 - 20
= $8
Answer(s): (a) $8; (b) $12; (c) $8