Marion and Shannon had an equal number of buttons at first. Marion used
14 of her buttons and Shannon used
16 of her buttons. They used 45 buttons altogether. How many buttons did Shannon have in the end?
| |
Marion |
Shannon |
| Before |
4x3 =
12 u |
6x2 =
12 u |
| Change |
- 1x3 =
- 3 u |
- 1x2 =
- 2 u |
| After |
3x3 =
9 u |
5x2 =
10 u |
The number of buttons that Marion and Shannon each had at first is the same. Make the number of buttons that Marion and Shannon each had at first the same. LCM of 4 and 6 is 12.
Number of buttons that Marion and Shannon used
= 3 u + 2 u
= 5 u
5 u = 45
1 u = 45 ÷ 5 = 9
Number of buttons that Shannon had in the end
= 10 u
= 10 x 9
= 90
Answer(s): 90
