Answer:
7.5 cups
Explanation:
For this you'd need to set up a ratio of 4lbs : 3 cups = 10lbs : x cups
You can turn this into an equation by turning it into a fraction, so 3/4 = x/10
Then you would solve this like a regular equation
1. 3/4 = x/10
2. 10(3/4 = x/10)
3. 10 * 3/4 = x
4. 7.5 = x