Kimberly and Dana had equal amount of money. Each day, Kimberly spent $17 and Dana spent $20. When Kimberly had $110 left, Dana had
110 as much money left as Kimberly. How much money did the two girls have at first?
| |
Kimberly |
Dana |
| Before |
17 u + 110 |
20 u + 11 |
| Change |
- 17 u |
- 20 u |
| After |
$110 |
$11 |
Amount that Dana had left
=
110 x 110
= $11
The amount that Kimberly and Dana had at first is the same.
20 u + 11 = 17 u + 110
20 u - 17 u = 110 - 11
3 u = 99
1 u = 99 ÷ 3 = 33
Amount that Kimberly had at first
= 17 u + 110
= 17 x 33 + 110
= 561 + 110
= $671
Total amount that both girls had at first
= 2 x 671
= $1342
Answer(s): $1342
