Natalie and Mary had equal amount of money. Each day, Natalie spent $17 and Mary spent $24. When Natalie had $84 left, Mary had
512 as much money left as Natalie. How much money did the two girls have at first?
|
Natalie |
Mary |
Before |
17 u + 84 |
24 u + 35 |
Change |
- 17 u |
- 24 u |
After |
$84 |
$35 |
Amount that Mary had left
=
512 x 84
= $35
The amount that Natalie and Mary had at first is the same.
24 u + 35 = 17 u + 84
24 u - 17 u = 84 - 35
7 u = 49
1 u = 49 ÷ 7 = 7
Amount that Natalie had at first
= 17 u + 84
= 17 x 7 + 84
= 119 + 84
= $203
Total amount that both girls had at first
= 2 x 203
= $406
Answer(s): $406