1 bead and 1 sticker cost $14.
1 marble and 1 bead cost $11.
1 marble and 1 sticker cost $19.
- How much is 1 marble?
- How much is 1 sticker?
- How much is 1 bead?
Cost of 2 beads, 2 stickers and 2 marbles
= 14 + 11 + 19
= $44
Cost of 1 bead, 1 sticker and 1 marble
= 44 ÷ 2
= $22
(a)
Cost of 1 marble
= 22 - 14
= $8
(b)
Cost of 1 sticker
= 22 - 11
= $11
(c)
Cost of 1 bead
= 22 - 19
= $3
Answer(s): (a) $8; (b) $11; (c) $3