The ratio blueberry muffins to all the muffins is [tex]5\div9[/tex] and it can be detremine by using arithmetic operations.
Given :
Total number of corn muffins = 12
Total number of bluberry muffins = 15
Following steps can be use to determine the ratio of the blueberry muffins to all the muffins:
Step 1 - Evaluate the total number of muffins.
Total number of muffins = (Total number of corn muffins + Total number of blueberry muffins)
Total number of muffins = 12 + 15 = 27
Step 2 - Now, divide the total number of blueberry muffins by the total number of muffins.
[tex]=\dfrac{15}{27}[/tex]
Step 3 - Further simplify the ratio.
[tex]=\dfrac{5}{9}[/tex]
Therefore, the ratio blueberry muffins to all the muffins is [tex]5\div9[/tex].
For more infromation, refer the link given below:
https://brainly.com/question/15385899
