1 sticker and 1 marble cost $17.
1 bead and 1 sticker cost $16.
1 bead and 1 marble cost $19.
- How much is 1 bead?
- How much is 1 marble?
- How much is 1 sticker?
Cost of 2 stickers, 2 marbles and 2 beads
= 17 + 16 + 19
= $52
Cost of 1 sticker, 1 marble and 1 bead
= 52 ÷ 2
= $26
(a)
Cost of 1 bead
= 26 - 17
= $9
(b)
Cost of 1 marble
= 26 - 16
= $10
(c)
Cost of 1 sticker
= 26 - 19
= $7
Answer(s): (a) $9; (b) $10; (c) $7