Hilda and Natalie had equal amount of money. Each day, Hilda spent $4 and Natalie spent $9. When Hilda had $112 left, Natalie had
38 as much money left as Hilda. How much money did the two girls have at first?
| |
Hilda |
Natalie |
| Before |
4 u + 112 |
9 u + 42 |
| Change |
- 4 u |
- 9 u |
| After |
$112 |
$42 |
Amount that Natalie had left
=
38 x 112
= $42
The amount that Hilda and Natalie had at first is the same.
9 u + 42 = 4 u + 112
9 u - 4 u = 112 - 42
5 u = 70
1 u = 70 ÷ 5 = 14
Amount that Hilda had at first
= 4 u + 112
= 4 x 14 + 112
= 56 + 112
= $168
Total amount that both girls had at first
= 2 x 168
= $336
Answer(s): $336
