Solve the problem.Paul Nagel invested some money at 3.5% simple interest and $7000 more than that amount at 4.5% simple interest. After 1 year, his total interest from the two accounts was $1275. How much did he invest at each rate?
A. $12,000 at 3.5%; $20,000 at 4.5%
B. $12,000 at 3.5%; $19,000 at 4.5%
C. $13,000 at 3.5%; $19,000 at 4.5%
D. $13,000 at 3.5%; $18,000 at 4.5%
Answer: B
Mathematics
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