1 marble and 1 bead cost $5.
1 sticker and 1 marble cost $5.
1 sticker and 1 bead cost $8.
- How much is 1 sticker?
- How much is 1 bead?
- How much is 1 marble?
Cost of 2 marbles, 2 beads and 2 stickers
= 5 + 5 + 8
= $18
Cost of 1 marble, 1 bead and 1 sticker
= 18 ÷ 2
= $9
(a)
Cost of 1 sticker
= 9 - 5
= $4
(b)
Cost of 1 bead
= 9 - 5
= $4
(c)
Cost of 1 marble
= 9 - 8
= $1
Answer(s): (a) $4; (b) $4; (c) $1