Tina and Irene had equal amount of money. Each day, Tina spent $19 and Irene spent $24. When Tina had $80 left, Irene had
12 as much money left as Tina. How much money did the two girls have at first?
| |
Tina |
Irene |
| Before |
19 u + 80 |
24 u + 40 |
| Change |
- 19 u |
- 24 u |
| After |
$80 |
$40 |
Amount that Irene had left
=
12 x 80
= $40
The amount that Tina and Irene had at first is the same.
24 u + 40 = 19 u + 80
24 u - 19 u = 80 - 40
5 u = 40
1 u = 40 ÷ 5 = 8
Amount that Tina had at first
= 19 u + 80
= 19 x 8 + 80
= 152 + 80
= $232
Total amount that both girls had at first
= 2 x 232
= $464
Answer(s): $464
