Emma and Julie had equal amount of money. Each day, Emma spent $16 and Julie spent $21. When Emma had $102 left, Julie had
16 as much money left as Emma. How much money did the two girls have at first?
| |
Emma |
Julie |
| Before |
16 u + 102 |
21 u + 17 |
| Change |
- 16 u |
- 21 u |
| After |
$102 |
$17 |
Amount that Julie had left
=
16 x 102
= $17
The amount that Emma and Julie had at first is the same.
21 u + 17 = 16 u + 102
21 u - 16 u = 102 - 17
5 u = 85
1 u = 85 ÷ 5 = 17
Amount that Emma had at first
= 16 u + 102
= 16 x 17 + 102
= 272 + 102
= $374
Total amount that both girls had at first
= 2 x 374
= $748
Answer(s): $748
