Solve.
-Melissa invested an amount of money in a stock that earned an annual 3% return. She invested three times the original amount in another stock that earned an annual 5% return. If her total yearly
Return from both investments was $7200, find out how much she invested at 3%?
A) $40,000
B) $270,000
C) $30,000
D) $90,000

Question

Quizplus · Accepted Answer

Let the amount invested at 3% be x. Then, the amount invested at 5% is 3x. The total return is the sum of the returns from each investment: 0.03x + 0.05(3x) = 7200. Solving this equation gives x = $40,000.

Solve. -Melissa Invested an Amount of Money in a Stock That