Jen has 2 times as many marbles as Raeann. Raeann has
57 as many marbles as Opal. If the three of them have a total of 176 marbles, how many marbles does Jen have?
Jen |
Raeann |
Opal |
2x5 |
1x5 |
|
|
5x1 |
7x1 |
10 u |
5 u |
7 u |
The number of marbles that Raeann has is repeated. Make the number of marbles that Raeann has the same. LCM of 1 and 5 is 5.
Total number of marbles that the three of them have
= 10 u + 5 u + 7 u
= 22 u
22 u = 176
1 u = 176 ÷ 22 = 8
Number of marbles that Jen has
= 10 u
= 10 x 8
= 80
Answer(s): 80