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posted by Pam .
Madalyn wants to buy a 400 dollars stereo set in 9 months. How much should she invest at 3% simple interest to have the money then?

400 = S*1.0225 (.03/(9/12))
S = 400/1.0225
= 391.20
posted by Pam .
Madalyn wants to buy a 400 dollars stereo set in 9 months. How much should she invest at 3% simple interest to have the money then?
400 = S*1.0225 (.03/(9/12))
S = 400/1.0225
= 391.20