At a shop, Anna paid $46 for 1 marble and 3 buttons. The marble cost $6 more than each button.
- How much is 1 button?
- How much is 1 marble?
(a)
Cost of 1 button = 1 u
Cost of 3 buttons = 3 u
Cost of 1 marble = 1 u + 6
Total cost of 1 marble and 3 buttons
= 3 u + 1 u + 6
= 4 u + 6
4 u + 6 = 46
4 u = 46 - 6
4 u = 40
1 u = 40 ÷ 4 = 10
Cost of 1 button
= 1 u
= $10
(b)
Cost of 1 marble
= 1 u + 6
= 10 + 6
= $16
Answer(s): (a) $10; (b) $16