Final answer:
To write the rate as a simplified fraction, set up a proportion with the number of fence panels in the numerator and the length in feet in the denominator. Solve the proportion by cross-multiplying and then dividing.
Step-by-step explanation:
To write the rate as a simplified fraction, we need to set up a proportion using the given information. The proportion should have the number of fence panels (84) in the numerator and the length in feet (1140) in the denominator.
84/1140 = x/1, where x represents the unknown value we want to find.
To solve the proportion, we cross-multiply and then divide: 84 * 1 = 1140 * x. Simplifying, we get x = 84/1140.
Therefore, the rate is 84/1140, which can be simplified further if needed.