At a shop, Kimberly paid $83 for 1 button and 2 stamps. The button cost $8 more than each stamp.
- How much is 1 stamp?
- How much is 1 button?
(a)
Cost of 1 stamp = 1 u
Cost of 2 stamps = 2 u
Cost of 1 button = 1 u + 8
Total cost of 1 button and 2 stamps
= 2 u + 1 u + 8
= 3 u + 8
3 u + 8 = 83
3 u = 83 - 8
3 u = 75
1 u = 75 ÷ 3 = 25
Cost of 1 stamp
= 1 u
= $25
(b)
Cost of 1 button
= 1 u + 8
= 25 + 8
= $33
Answer(s): (a) $25; (b) $33