Zoe paid a total of $72 for a sweater, a coat and a vest. The sweater cost
15 of the total cost of the coat and the vest. The vest cost
17 of the total cost of the sweater and the coat. Find the total cost of the vest and the sweater.
| Sweater |
Coat |
Vest |
Total |
1x4 =
4 u |
5x4 =
20 u |
6x4 =
24 u |
7x3 =
21 u |
1x3 =
3 u |
8x3 =
24 u |
| 4 u |
17 u |
3 u |
24 u |
Total amount that Zoe paid for the sweater, the coat and the vest = 24 u
24 u = 72
1 u = 72 ÷ 24 = 3
Total cost of the vest and the sweater
= 4 u + 3 u
= 7 u
= 7 x 3
= $21
Answer(s): $21
