Dana and Nicole had an equal number of lollipops. After Dana bought another 29 lollipops and Nicole bought another 7 lollipops, Dana had thrice as many lollipops as Nicole. Find the number of lollipops that each of them had at first.
| |
Dana |
Nicole |
| Before |
3 u - 29 |
1 u - 7 |
| Change |
+ 29 |
+ 7 |
| After |
3 u |
1 u |
The number of lollipops that Dana and Nicole had at first is the same.
3 u - 29 = 1 u - 7
3 u - 1 u = 29 - 7
2 u = 22
1 u = 22 ÷ 2 = 11
Number of lollipops that each had at first
= 11 - 7
= 4
Answer(s): 4
