1 marble and 1 sticker cost $18.
1 bead and 1 marble cost $7.
1 bead and 1 sticker cost $19.
- How much is 1 bead?
- How much is 1 sticker?
- How much is 1 marble?
Cost of 2 marbles, 2 stickers and 2 beads
= 18 + 7 + 19
= $44
Cost of 1 marble, 1 sticker and 1 bead
= 44 ÷ 2
= $22
(a)
Cost of 1 bead
= 22 - 18
= $4
(b)
Cost of 1 sticker
= 22 - 7
= $15
(c)
Cost of 1 marble
= 22 - 19
= $3
Answer(s): (a) $4; (b) $15; (c) $3