1 marble and 1 bead cost $19.
1 sticker and 1 marble cost $4.
1 sticker and 1 bead cost $19.
- How much is 1 sticker?
- How much is 1 bead?
- How much is 1 marble?
Cost of 2 marbles, 2 beads and 2 stickers
= 19 + 4 + 19
= $42
Cost of 1 marble, 1 bead and 1 sticker
= 42 ÷ 2
= $21
(a)
Cost of 1 sticker
= 21 - 19
= $2
(b)
Cost of 1 bead
= 21 - 4
= $17
(c)
Cost of 1 marble
= 21 - 19
= $2
Answer(s): (a) $2; (b) $17; (c) $2