Zoe paid a total of $315 for a shirt, a sweater and a vest. The shirt cost
18 of the total cost of the sweater and the vest. The vest cost
16 of the total cost of the shirt and the sweater. Find the total cost of the vest and the shirt.
| Shirt |
Sweater |
Vest |
Total |
1x7 =
7 u |
8x7 =
56 u |
9x7 =
63 u |
6x9 =
54 u |
1x9 =
9 u |
7x9 =
63 u |
| 7 u |
47 u |
9 u |
63 u |
Total amount that Zoe paid for the shirt, the sweater and the vest = 63 u
63 u = 315
1 u = 315 ÷ 63 = 5
Total cost of the vest and the shirt
= 7 u + 9 u
= 16 u
= 16 x 5
= $80
Answer(s): $80
