1 sticker and 1 bead cost $12.
1 marble and 1 sticker cost $6.
1 marble and 1 bead cost $12.
- How much is 1 marble?
- How much is 1 bead?
- How much is 1 sticker?
Cost of 2 stickers, 2 beads and 2 marbles
= 12 + 6 + 12
= $30
Cost of 1 sticker, 1 bead and 1 marble
= 30 ÷ 2
= $15
(a)
Cost of 1 marble
= 15 - 12
= $3
(b)
Cost of 1 bead
= 15 - 6
= $9
(c)
Cost of 1 sticker
= 15 - 12
= $3
Answer(s): (a) $3; (b) $9; (c) $3