1 bead and 1 marble cost $16.
1 sticker and 1 bead cost $10.
1 sticker and 1 marble cost $16.
- How much is 1 sticker?
- How much is 1 marble?
- How much is 1 bead?
Cost of 2 beads, 2 marbles and 2 stickers
= 16 + 10 + 16
= $42
Cost of 1 bead, 1 marble and 1 sticker
= 42 ÷ 2
= $21
(a)
Cost of 1 sticker
= 21 - 16
= $5
(b)
Cost of 1 marble
= 21 - 10
= $11
(c)
Cost of 1 bead
= 21 - 16
= $5
Answer(s): (a) $5; (b) $11; (c) $5