Cathy has 2 times as many marbles as Kimberly. Kimberly has
37 as many marbles as Elyse. If the three of them have a total of 96 marbles, how many marbles does Elyse have?
Cathy |
Kimberly |
Elyse |
2x3 |
1x3 |
|
|
3x1 |
7x1 |
6 u |
3 u |
7 u |
The number of marbles that Kimberly has is repeated. Make the number of marbles that Kimberly has the same. LCM of 1 and 3 is 3.
Total number of marbles that the three of them have
= 6 u + 3 u + 7 u
= 16 u
16 u = 96
1 u = 96 ÷ 16 = 6
Number of marbles that Elyse has
= 7 u
= 7 x 6
= 42
Answer(s): 42