1 bead and 1 marble cost $15.
1 sticker and 1 bead cost $14.
1 sticker and 1 marble cost $17.
- How much is 1 sticker?
- How much is 1 marble?
- How much is 1 bead?
Cost of 2 beads, 2 marbles and 2 stickers
= 15 + 14 + 17
= $46
Cost of 1 bead, 1 marble and 1 sticker
= 46 ÷ 2
= $23
(a)
Cost of 1 sticker
= 23 - 15
= $8
(b)
Cost of 1 marble
= 23 - 14
= $9
(c)
Cost of 1 bead
= 23 - 17
= $6
Answer(s): (a) $8; (b) $9; (c) $6