Lee and Mary had the same number of mini cupcakes. After Mary gave away 18 mini cupcakes and Lee gave away 47 mini cupcakes, Mary had 2 times as many mini cupcakes as Lee. How many mini cupcakes did each of them have at first?
| |
Lee |
Mary |
| Before |
1 u + 47 |
2 u + 18 |
| Change |
- 47 |
- 18 |
| After |
1 u |
2 u |
The number of mini cupcakes that Lee and Mary had at first is the same.
2 u + 18 = 1 u + 47
2 u - 1 u = 47 - 18
1 u = 29
1 u = 29 ÷ 1 = 29
Number of mini cupcakes that each of them had at first
= 1 u + 47
= 29 + 47
= 76
Answer(s): 76
