Andy had $1.40 less than Henry. After Andy gave $3.20 to Henry, Henry would have thrice as much money as Andy. How much money had Henry at first?
| |
Henry |
Andy |
| Before |
3 u - $3.20 |
1 u + $3.20 |
| Change |
+ $3.20 |
- $3.20 |
| After |
3 u |
1 u |
Andy had $1.40 less than Henry. If another $1.40 was given to Andy, Henry and Andy would have the same amount at first.
3 u - 3.20 = 1 u + 3.20 + 1.40
3 u - 1 u = 3.20 + 1.40 + 3.20
2 u = 7.80
1 u = 7.80 ÷ 2 = 3.90
Amount that Henry had at first
= 3 u - 3.20
= 3 x 3.90 + 3.20
= 11.70 + 3.20
= $14.90
Answer(s): $14.90
