Joelle and Zoe have 350 buttons altogether. Zoe has four times as many buttons as Joelle. How many buttons must Zoe give to Joelle so that they have the same number of buttons?
|
Joelle |
Zoe |
Total |
Before |
1 u |
4 u |
350 |
Change |
+ ? |
- ? |
|
After |
175 |
175 |
350 |
Total number of buttons that Joelle and Zoe have
= 1 u + 4 u
= 5 u
5 u = 350
1 u = 350 ÷ 5 = 70
Number of buttons that Joelle and Zoe each has in the end
= 350 ÷ 2
= 175
Number of buttons that Zoe must give to Joelle
= 175 - 70
= 105
Answer(s): 105