Anna has 2 times as many stickers as Joelle. Joelle has
45 as many stickers as Emma. If the three of them have a total of 170 stickers, how many stickers does Emma have?
Anna |
Joelle |
Emma |
2x4 |
1x4 |
|
|
4x1 |
5x1 |
8 u |
4 u |
5 u |
The number of stickers that Joelle has is repeated. Make the number of stickers that Joelle has the same. LCM of 1 and 4 is 4.
Total number of stickers that the three of them have
= 8 u + 4 u + 5 u
= 17 u
17 u = 170
1 u = 170 ÷ 17 = 10
Number of stickers that Emma has
= 5 u
= 5 x 10
= 50
Answer(s): 50