Answer
There will be 35 green marbles for a bag containing 56 orange marbles.
Step-by-step explanation
We are told that each bag contains 5 green marbles for every 8 orange marbles.
5 green marbles = 8 orange marbles
We are then told to calculate how many green marbles a bag containing 56 orange marbles.
Let this number be x green marbles.
5 green marbles = 8 orange marbles
x green marbles = 56 orange marbles
We can form a mathematical relation by cross multiplying.
8 × x = 5 × 56
8x = 280
Divide both sides by 8
(8x/8) = (280/8)
x = 35 green marbles.
Hope this Helps!!!