Marion and Sarah had $114 at first. Marion spent
58 of her money and Sarah spent
45 of her money. Given that they had $41 left, how much did Marion have at first?
|
Marion |
Sarah |
Total |
Before |
8 u |
5 p |
$114 |
Change |
- 5 u |
- 4 p |
|
After |
3 u |
1 p |
$41 |
8 u + 5 p = 114 --- (1)
3 u + 1 p = 41 --- (2)
(2) x 5 15 u + 5 p = 205 --- (3)
(3) - (1)
15 u - 8 u = 205 - 114
7 u = 91
1 u = 91 ÷ 7 = 13
Amount that Marion had at first
= 8 u
= 8 x 13
= $104
Answer(s): $104