In a bag there are 2 red buttons, 3 green buttons, and 4 purple buttons. A student writes the ratio for the number of purple buttons to green buttons as 3:4 . Is this student correct? Explain why or why not.
No, the student is not correct.
To write the ratio of purple buttons to green buttons, we need to compare the number of purple buttons to the number of green buttons. However, in the given scenario, there are 4 purple buttons and 3 green buttons, which means the correct ratio should be 4:3, not 3:4.
So, the student has written the ratio incorrectly.