Zoe paid a total of $90 for a coat, a vest and a skirt. The coat cost
18 of the total cost of the vest and the skirt. The skirt cost
15 of the total cost of the coat and the vest. Find the total cost of the skirt and the coat.
| Coat |
Vest |
Skirt |
Total |
1x2 =
2 u |
8x2 =
16 u |
9x2 =
18 u |
5x3 =
15 u |
1x3 =
3 u |
6x3 =
18 u |
| 2 u |
13 u |
3 u |
18 u |
Total amount that Zoe paid for the coat, the vest and the skirt = 18 u
18 u = 90
1 u = 90 ÷ 18 = 5
Total cost of the skirt and the coat
= 2 u + 3 u
= 5 u
= 5 x 5
= $25
Answer(s): $25
