SOLUTION: Mr. Smith borrowed ​$28,000 to purchase stock for his baseball card shop. He repaid the simple interest loan after three years. He paid interest of ​$6,160 . What was

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Question 1047276: Mr. Smith borrowed ​$28,000 to purchase stock for his baseball card shop. He repaid the simple interest loan after three years. He paid interest of ​$6,160 . What was the interest​ rate?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+I+=+P%2Ar%2At+
+I+=+6160+
+P+=+28000+
+t+=+3+
-----------------
+6160+=+28000%2Ar%2A3+
+6160+=+84000r+
+r+=+.07333+
The interest rate is 7 and 1/3 percent