Zoe has $9 more than Gem. Eva has four times as much money as Zoe. They have a total of $129.
- How much money does Zoe have?
- How much money does Eva have?
(a)
Amount that Zoe has = 1 u
Amount that Gem has = 1 u - 9
Amount that Eva has = 4 u
Total amount that they has
= 1 u + 1 u - 9 + 4 u
= 6 u - 9
6 u - 9 = 129
6 u = 129 + 9
6 u = 138
1 u = 138 ÷ 6 = 23
(b)
Amount that Eva has
= 4 u
= 4 x 23
= $92
Answer(s): (a) $23; (b) $92