The solution \( s = 44 \) when \( b = 11 \) means that Michael used 44 strawberries and 11 bananas to make the large batch of smoothies.
This can be confirmed by plugging these values back into the equations of the system:
- \( s = 4b \) becomes \( 44 = 4(11) \) which is correct.
- \( s + b = 55 \) becomes \( 44 + 11 = 55 \) which is also correct.
Therefore, the correct interpretation is: The solution shows that Michael used 44 strawberries and 11 bananas to make the large batch of smoothies.