1 bead and 1 marble cost $11.
1 sticker and 1 bead cost $7.
1 sticker and 1 marble cost $14.
- How much is 1 sticker?
- How much is 1 marble?
- How much is 1 bead?
Cost of 2 beads, 2 marbles and 2 stickers
= 11 + 7 + 14
= $32
Cost of 1 bead, 1 marble and 1 sticker
= 32 ÷ 2
= $16
(a)
Cost of 1 sticker
= 16 - 11
= $5
(b)
Cost of 1 marble
= 16 - 7
= $9
(c)
Cost of 1 bead
= 16 - 14
= $2
Answer(s): (a) $5; (b) $9; (c) $2