1 marble and 1 sticker cost $14.
1 bead and 1 marble cost $10.
1 bead and 1 sticker cost $20.
- 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 + 10 + 20
= $44
Cost of 1 marble, 1 sticker and 1 bead
= 44 ÷ 2
= $22
(a)
Cost of 1 bead
= 22 - 14
= $8
(b)
Cost of 1 sticker
= 22 - 10
= $12
(c)
Cost of 1 marble
= 22 - 20
= $2
Answer(s): (a) $8; (b) $12; (c) $2