Billy had $5.50 less than Japheth. After Billy gave $1.30 to Japheth, Japheth would have four times as much money as Billy. How much money had Japheth at first?
| |
Japheth |
Billy |
| Before |
4 u - $1.30 |
1 u + $1.30 |
| Change |
+ $1.30 |
- $1.30 |
| After |
4 u |
1 u |
Billy had $5.50 less than Japheth. If another $5.50 was given to Billy, Japheth and Billy would have the same amount at first.
4 u - 1.30 = 1 u + 1.30 + 5.50
4 u - 1 u = 1.30 + 5.50 + 1.30
3 u = 8.10
1 u = 8.10 ÷ 3 = 2.70
Amount that Japheth had at first
= 4 u - 1.30
= 4 x 2.70 + 1.30
= 10.80 + 1.30
= $12.10
Answer(s): $12.10
