Kimberly and Penelope had $96 at first. Kimberly spent
38 of her money and Penelope spent
34 of her money. Given that they had $33 left, how much did Kimberly have at first?
| |
Kimberly |
Penelope |
Total |
| Before |
8 u |
4 p |
$96 |
| Change |
- 3 u |
- 3 p |
|
| After |
5 u |
1 p |
$33 |
8 u + 4 p = 96 --- (1)
5 u + 1 p = 33 --- (2)
(2) x 4 20 u + 4 p = 132 --- (3)
(3) - (1)
20 u - 8 u = 132 - 96
12 u = 36
1 u = 36 ÷ 12 = 3
Amount that Kimberly had at first
= 8 u
= 8 x 3
= $24
Answer(s): $24
