Answer: 30 oranges
Explanation:
For each "repeat" of the ratio, we will find the total number of apples and oranges.
4 + 3 = 7
Next, we will find how many times this ratio repeats in the total.
70 / 7 = 10 times
Lastly, we can multiply the ratio of oranges by 10 to find out how many oranges are in the bag (this applies to apples, too):
3 * 10 = 30