Zane had $30 more than Dana. After Dana spent
15 of her money, Zane had five times as much money as Dana. How much money did Zane have at first?
| |
Zane |
Dana |
| Before |
20 u |
5 u |
| Change |
|
- 1 u |
| After |
20 u |
4 u |
Amount that Zane had in the end
= 5 x 4 u
= 20 u
If Dana had another $30 at first, the amounts that Zane and Dana each had at first will be the same.
20 u = 5 u + 30
20 u - 5 u = 30
15 u = 30
1 u = 30 ÷ 15 = 2
Amount Zane had at first
= 20 u
= 20 x 2
= $40
Answer(s): $40
