Answer: Carmen made 12 widgets
Step-by-step explanation: Let's assume that Carmen made x widgets.
According to the problem, Julie made four times as many widgets as Carmen, which means she made 4x widgets.
Together, they made a total of 60 widgets, so we can write an equation based on this information:
x + 4x = 60
Simplifying this equation, we get:
5x = 60
Dividing both sides by 5, we get:
x = 12
Therefore, Carmen made 12 widgets.