Julie has 2 times as many buttons as Jade. Jade has
45 as many buttons as Cathy. If the three of them have a total of 85 buttons, how many buttons does Julie have?
Julie |
Jade |
Cathy |
2x4 |
1x4 |
|
|
4x1 |
5x1 |
8 u |
4 u |
5 u |
The number of buttons that Jade has is repeated. Make the number of buttons that Jade has the same. LCM of 1 and 4 is 4.
Total number of buttons that the three of them have
= 8 u + 4 u + 5 u
= 17 u
17 u = 85
1 u = 85 ÷ 17 = 5
Number of buttons that Julie has
= 8 u
= 8 x 5
= 40
Answer(s): 40