Based on the given information on the marathon, "x" is the variable term in numbers and letters.
what is the variable term in numbers and letters
The variable term in this scenario is the number of laps Iggy still needs to run. Let's denote this variable term as "x."
Given that each lap covers 0.7 kilometers and Iggy has already run 19.6 kilometers, set up the equation:
0.7x = 19.6
Here, "x" represents the number of laps Iggy still needs to run.
Therefore, "x" is the variable term in numbers and letters.