1 bead and 1 marble cost $14.
1 sticker and 1 bead cost $9.
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
= 14 + 9 + 17
= $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 - 9
= $11
(c)
Cost of 1 bead
= 20 - 17
= $3
Answer(s): (a) $6; (b) $11; (c) $3