Kimberly and Mary had the same number of buttons. After Kimberly had given away 76 buttons, Mary had 5 times as many buttons as Kimberly. How many buttons did each of them have at first?
| |
Kimberly |
Mary |
| Before |
1 u + 76 |
5 u |
| Change |
- 76 |
|
| After |
1 u |
5 u |
Number of buttons that Mary had remains unchanged.
Number of buttons that Kimberly and Mary had at first is equal.
5 u = 1 u + 76
5 u - 1 u = 76
4 u = 76
1 u = 76 ÷ 4= 19
Number of buttons that each of them had at first
= 1 u + 76
= 19 + 76
= 95
Answer(s): 95
