Question

The number of all credit-card holders in the U.S. is IN(a) million card holders and the collective amount of credit card debt that all credit-card holders carry is D(x) billion dollars, x years after 2010. The average credit card debt per card holder at year x is:

Answer 1

Answer: D(x) / IN(a)

Step-by-step explanation:

If one wanted to find out the average credit card debt per card holder then the correct formula would be:

= Amount of debt that all credit card holders carry / Number of credit card holders

As the amount of debt that all credit card holders carry is denoted by D(x) and the number of credit card holders is IN(a), the average credit card debt per card holder is:

= D(x) / IN(a)