Sam and Sean had $113 at first. Sam spent $41 while Sean spent $39 less than him. The amount Sean had left was
23 of the amount Sam had left. How much did Sam have at first?
|
Sam |
Sean |
Total |
Before |
2 u + 41 |
3 u + 2 |
113 |
Change |
- 41 |
- 2 |
|
After |
2 u |
3 u |
|
Amount that Sean had spent
= 41 - 39
= $2
Total amount that Sam and Sean had at first
= 2 u + 41 + 3 u + 2
= 5 u + 43
5 u + 43 = 113
5 u = 113 - 43
5 u = 70
1 u = 70 ÷ 5 = 14
Amount that Sam had at first
= 3 u + 41
= 3 x 14 + 41
= 42 + 41
= $83
Answer(s): $83