1 bead and 1 marble cost $6.
1 sticker and 1 bead cost $3.
1 sticker and 1 marble cost $7.
- How much is 1 sticker?
- How much is 1 marble?
- How much is 1 bead?
Cost of 2 beads, 2 marbles and 2 stickers
= 6 + 3 + 7
= $16
Cost of 1 bead, 1 marble and 1 sticker
= 16 ÷ 2
= $8
(a)
Cost of 1 sticker
= 8 - 6
= $2
(b)
Cost of 1 marble
= 8 - 3
= $5
(c)
Cost of 1 bead
= 8 - 7
= $1
Answer(s): (a) $2; (b) $5; (c) $1