Answer:
Number of green marbles in the collection is 22
Step-by-step explanation:
Andy has a collection of blue and green marbles.
Let x = number of blue marbles in the collection.
Let y = number of green marbles in the collection.
The number of blue marbles is three times the number of green marbles. This means
b =3y
If there are 66 blue marbles in his collection, that means that x = 66
If number of blue marbles is 66, then
Number of green marbles in the collection would be
3y = 66
y = 66/3 = 22 green marbles
