1 bead and 1 sticker cost $11.
1 marble and 1 bead cost $9.
1 marble and 1 sticker cost $14.
- How much is 1 marble?
- How much is 1 sticker?
- How much is 1 bead?
Cost of 2 beads, 2 stickers and 2 marbles
= 11 + 9 + 14
= $34
Cost of 1 bead, 1 sticker and 1 marble
= 34 ÷ 2
= $17
(a)
Cost of 1 marble
= 17 - 11
= $6
(b)
Cost of 1 sticker
= 17 - 9
= $8
(c)
Cost of 1 bead
= 17 - 14
= $3
Answer(s): (a) $6; (b) $8; (c) $3