A blouse cost $5 more than a cardigan. Anna paid $181 for 4 blouses and 3 cardigans. How much did 1 blouse cost?
| |
Cardigans |
Blouses |
Total |
| Number |
3 |
4 |
|
| Value |
1 u |
1 u + 5 |
|
| Total value |
3 u |
4 u + 20 |
7 u + 20 |
Cost of 1 cardigan = 1 u
Cost of 3 cardigans = 3 u
Cost of 1 blouse = 1 u + 5
Cost of 4 blouses
= 4 x (1 u + 5)
= 4 u + 20
Cost of 3 cardigans and 4 blouses
= 3 u + 4 u + 20
= 7 u + 20
7 u + 20 = 181
7 u = 181 - 20
7 u = 161
1 u = 161 ÷ 7 = 23
Cost of 1 blouse
= 23 + 5
= $28
Answer(s): $28
