1 marble and 1 bead cost $12.
1 sticker and 1 marble cost $4.
1 sticker and 1 bead cost $14.
- How much is 1 sticker?
- How much is 1 bead?
- How much is 1 marble?
Cost of 2 marbles, 2 beads and 2 stickers
= 12 + 4 + 14
= $30
Cost of 1 marble, 1 bead and 1 sticker
= 30 ÷ 2
= $15
(a)
Cost of 1 sticker
= 15 - 12
= $3
(b)
Cost of 1 bead
= 15 - 4
= $11
(c)
Cost of 1 marble
= 15 - 14
= $1
Answer(s): (a) $3; (b) $11; (c) $1