###### Example5.2.10Two Different Interest Rates

Notah made some large purchases with his two credit cards one month and took on a total of $$\8{,}400$$ in debt from the two cards. He didn't make any payments the first month, so the two credit card debts each started to accrue interest. That month, his Visa card charged $$2\%$$ interest and his Mastercard charged $$2.5\%$$ interest. Because of this, Notah's total debt grew by $$\178\text{.}$$ How much money did Notah charge to each card?

Explanation
in-context