1 marble and 1 bead cost $12.
1 sticker and 1 marble cost $9.
1 sticker and 1 bead cost $13.
- How much is 1 sticker?
- How much is 1 bead?
- How much is 1 marble?
Cost of 2 marbles, 2 beads and 2 stickers
= 12 + 9 + 13
= $34
Cost of 1 marble, 1 bead and 1 sticker
= 34 ÷ 2
= $17
(a)
Cost of 1 sticker
= 17 - 12
= $5
(b)
Cost of 1 bead
= 17 - 9
= $8
(c)
Cost of 1 marble
= 17 - 13
= $4
Answer(s): (a) $5; (b) $8; (c) $4