Solve the problem.Paul Nagel invested some money at 4.5% simple interest and $1000 more than that amount at 3% simple interest. After 1 year, his total interest from the two accounts was $1380. How much did he invest at each rate?
A. $18,000 at 4.5%; $19,000 at 3%
B. $18,000 at 4.5%; $20,000 at 3%
C. $19,000 at 4.5%; $19,000 at 3%
D. $19,000 at 4.5%; $18,000 at 3%
Answer: A
Mathematics
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