Joelle and Usha had $52 at first. Joelle spent
38 of her money and Usha spent
34 of her money. Given that they had $88 left, how much did Joelle have at first?
| |
Joelle |
Usha |
Total |
| Before |
8 u |
4 p |
$52 |
| Change |
- 3 u |
- 3 p |
|
| After |
5 u |
1 p |
$88 |
8 u + 4 p = 52 --- (1)
5 u + 1 p = 88 --- (2)
(2) x 4 20 u + 4 p = 352 --- (3)
(3) - (1)
20 u - 8 u = 352 - 52
12 u = 300
1 u = 300 ÷ 12 = 25
Amount that Joelle had at first
= 8 u
= 8 x 25
= $200
Answer(s): $200
