A skirt cost $17 more than a cardigan. Anna paid $323 for 5 skirts and 2 cardigans. How much did 1 skirt cost?
| |
Cardigans |
Skirts |
Total |
| Number |
2 |
5 |
|
| Value |
1 u |
1 u + 17 |
|
| Total value |
2 u |
5 u + 85 |
7 u + 85 |
Cost of 1 cardigan = 1 u
Cost of 2 cardigans = 2 u
Cost of 1 skirt = 1 u + 17
Cost of 5 skirts
= 5 x (1 u + 17)
= 5 u + 85
Cost of 2 cardigans and 5 skirts
= 2 u + 5 u + 85
= 7 u + 85
7 u + 85 = 323
7 u = 323 - 85
7 u = 238
1 u = 238 ÷ 7 = 34
Cost of 1 skirt
= 34 + 17
= $51
Answer(s): $51
