Answer: Beth should make 7.5 batches of banana muffins.
Step-by-step explanation: Given that Beth made a batch of blueberry and banana muffins. Each batch is 6 muffins and she makes 2.5 batches of blueberry muffins.
We are to find the number of batches of banana muffins that Beth should make if she she wants to have a total of 60 muffins.
We have
1 batch = 6 muffins.
So, 2.5 batches = 6 × 2.5 = 15 muffins.
Let n represents the number of banana muffins that Beth should make.
Then, according to the given information, we have
Therefore, number of batches of banana muffins will be
Thus, Beth should make 7.5 batches of banana muffins.