Final answer:
To determine the width of the student's model of the Mayan Great Ball Court, divide the given length of 54 inches by 2.4, which results in a width of 22.5 inches.
Step-by-step explanation:
The student's question is about the dimensions of a model of the Mayan Great Ball Court where the length is 2.4 times the width. The given length of the model is 54 inches. To find the width, we divide the length by 2.4.
Width = Length ÷ 2.4
Width = 54 inches ÷ 2.4
Width = 22.5 inches
Therefore, the width of the student's model should be 22.5 inches to maintain the correct proportions.