Three sisters spent a total of $63. Diana spent $9 more than Victoria and Erika spent $6 more than Diana.
- How much money did Victoria spend?
- How much money did Erika spend?
(a)
Amount that Victoria spent = 1 u
Amount that Diana spent = 1 u + 9
Amount that Erika spent = 1 u + 9 + 6 = 1 u + 15
Total amount that they spent
= 1 u + 1 u + 9 + 1 u + 15
= 3 u + 24
3 u + 24 = 63
3 u = 63 - 24
3 u = 39
1 u = 39 ÷ 3 = $13
Amount that Victoria spent
= 1 u
= 13
(b)
Amount that Erika spent
= 1 u + 15
= 13 + 15
= $28
Answer(s): (a) $13; (b) $28
