posted by sherry on .
State an equation that represent this situation.
Mary invested one amount at 3% simple interest and a second amount at 9% interest ,earning $43.92 in one year.If she would have switched the amounts she would have earned $35.00.What were the 2 amounts?
.03Amount1 + .09Amount2=43.92
.09amount1 + .03Amount2=35.00
Do you have a question on how to solve this?