Tammy and Kimberly had $76 at first. Tammy spent
58 of her money and Kimberly spent
34 of her money. Given that they had $68 left, how much did Tammy have at first?
|
Tammy |
Kimberly |
Total |
Before |
8 u |
4 p |
$76 |
Change |
- 5 u |
- 3 p |
|
After |
3 u |
1 p |
$68 |
8 u + 4 p = 76 --- (1)
3 u + 1 p = 68 --- (2)
(2) x 4 12 u + 4 p = 272 --- (3)
(3) - (1)
12 u - 8 u = 272 - 76
4 u = 196
1 u = 196 ÷ 4 = 49
Amount that Tammy had at first
= 8 u
= 8 x 49
= $392
Answer(s): $392