Answer: 3b minutes
Explanation:
Here is the complete question:
It takes b minutes for Sylvia's bathtub to fill with water. How many minutes will it take to fill 3 same size bathtubs? Write your answer as an expression.
From the question, we are informed that Sylva bathtub takes b minutes to be filled with water. To calculate the number of minutes will it take to fill 3 same-size bathtub, we have to multiply the amount of minutes it takes Sylva bathtub to fill with water by 3. This can be mathematically written as:
= 3 × b
= 3b minutes
Therefore, it will take 3b minutes to fill 3 same size bathtubs.