Joelle has 2 times as many buttons as Kathy. Kathy has
58 as many buttons as Roshel. If the three of them have a total of 276 buttons, how many buttons does Joelle have?
Joelle |
Kathy |
Roshel |
2x5 |
1x5 |
|
|
5x1 |
8x1 |
10 u |
5 u |
8 u |
The number of buttons that Kathy has is repeated. Make the number of buttons that Kathy has the same. LCM of 1 and 5 is 5.
Total number of buttons that the three of them have
= 10 u + 5 u + 8 u
= 23 u
23 u = 276
1 u = 276 ÷ 23 = 12
Number of buttons that Joelle has
= 10 u
= 10 x 12
= 120
Answer(s): 120