Zoe paid a total of $36 for a coat, a sweater and a shirt. The coat cost
27 of the total cost of the sweater and the shirt. The shirt cost
15 of the total cost of the coat and the sweater. Find the total cost of the shirt and the coat.
| Coat |
Sweater |
Shirt |
Total |
2x2 =
4 u |
7x2 =
14 u |
9x2 =
18 u |
5x3 =
15 u |
1x3 =
3 u |
6x3 =
18 u |
| 4 u |
11 u |
3 u |
18 u |
Total amount that Zoe paid for the coat, the sweater and the shirt = 18 u
18 u = 36
1 u = 36 ÷ 18 = 2
Total cost of the shirt and the coat
= 4 u + 3 u
= 7 u
= 7 x 2
= $14
Answer(s): $14
