AI Tutor
Back to 6.10 Credit Cards

6.10 Exercise 9

Avg difficulty 2.5

Find the balance on the credit card with the given interest charge and balance before interest was charged. The cards were not paid off previously.

  1. Balance before interest is $708.50, interest charge is $8.15
  2. Balance before interest is $1,395.10, interest charge is $21.32

OpenStax Contemporary Mathematics, 6.10 Credit Cards, exercise 9

AI Tutor

Adapted from Contemporary Mathematics © 2023 Rice University. Licensed under CC BY 4.0. Source: Contemporary Mathematics. Imported at revision fa7c1a1.