Oliver had $9.40 less than Zane. After Oliver gave $3.90 to Zane, Zane would have five times as much money as Oliver. How much money had Zane at first?
| |
Zane |
Oliver |
| Before |
5 u - $3.90 |
1 u + $3.90 |
| Change |
+ $3.90 |
- $3.90 |
| After |
5 u |
1 u |
Oliver had $9.40 less than Zane. If another $9.40 was given to Oliver, Zane and Oliver would have the same amount at first.
5 u - 3.90 = 1 u + 3.90 + 9.40
5 u - 1 u = 3.90 + 9.40 + 3.90
4 u = 17.20
1 u = 17.20 ÷ 4 = 4.30
Amount that Zane had at first
= 5 u - 3.90
= 5 x 4.30 + 3.90
= 21.50 + 3.90
= $25.40
Answer(s): $25.40
