Asked by Marie P.
Ronelio invests $29,000 in two one-year certificates of deposit. One certificate pays 4%, and the other pays 4.75% simple interest annually.
(a) Construct a model for the total interest I(x) Ronelio earns in one year on his investments. (Let x represent the amount invested at 4%.)
(b) If Ronelio's total interest is $1332.50, how much money did he invest in each certificate?
(a) Construct a model for the total interest I(x) Ronelio earns in one year on his investments. (Let x represent the amount invested at 4%.)
(b) If Ronelio's total interest is $1332.50, how much money did he invest in each certificate?
Answers
Answered by
Damon
(a)
i(x) = .04 x + .0475 (29,000 - x)
= 1377.50 - .0075 x
(b)
1332.50 = 1377.50 - .0075 x
i(x) = .04 x + .0475 (29,000 - x)
= 1377.50 - .0075 x
(b)
1332.50 = 1377.50 - .0075 x
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