Emma and Yoko had equal amount of money. Each day, Emma spent $16 and Yoko spent $24. When Emma had $84 left, Yoko had
17 as much money left as Emma. How much money did the two girls have at first?
| |
Emma |
Yoko |
| Before |
16 u + 84 |
24 u + 12 |
| Change |
- 16 u |
- 24 u |
| After |
$84 |
$12 |
Amount that Yoko had left
=
17 x 84
= $12
The amount that Emma and Yoko had at first is the same.
24 u + 12 = 16 u + 84
24 u - 16 u = 84 - 12
8 u = 72
1 u = 72 ÷ 8 = 9
Amount that Emma had at first
= 16 u + 84
= 16 x 9 + 84
= 144 + 84
= $228
Total amount that both girls had at first
= 2 x 228
= $456
Answer(s): $456
