Jade and Zoe had $44 at first. Jade spent
38 of her money and Zoe spent
34 of her money. Given that they had $74 left, how much did Jade have at first?
|
Jade |
Zoe |
Total |
Before |
8 u |
4 p |
$44 |
Change |
- 3 u |
- 3 p |
|
After |
5 u |
1 p |
$74 |
8 u + 4 p = 44 --- (1)
5 u + 1 p = 74 --- (2)
(2) x 4 20 u + 4 p = 296 --- (3)
(3) - (1)
20 u - 8 u = 296 - 44
12 u = 252
1 u = 252 ÷ 12 = 21
Amount that Jade had at first
= 8 u
= 8 x 21
= $168
Answer(s): $168