Xandra and Linda had $64 at first. Xandra spent
58 of her money and Linda spent
34 of her money. Given that they had $60 left, how much did Xandra have at first?
| |
Xandra |
Linda |
Total |
| Before |
8 u |
4 p |
$64 |
| Change |
- 5 u |
- 3 p |
|
| After |
3 u |
1 p |
$60 |
8 u + 4 p = 64 --- (1)
3 u + 1 p = 60 --- (2)
(2) x 4 12 u + 4 p = 240 --- (3)
(3) - (1)
12 u - 8 u = 240 - 64
4 u = 176
1 u = 176 ÷ 4 = 44
Amount that Xandra had at first
= 8 u
= 8 x 44
= $352
Answer(s): $352
