Question 1169392
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If a portion of *[tex \Large T] monetary units are invested at *[tex \Large r_1%] per calendar period and the balance at *[tex \Large r_2%] per calendar period and the entire investment earns *[tex \Large I] monetary units in interest for one calendar period, then if *[tex \Large x] represents the portion of the investment earning *[tex \Large r_1%] interest, the amount invested at each rate can be calculated by solving:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{r_1}{100}x\ +\ \frac{r_2}{100}\(T\,-\,x\)\ =\ I]


for *[tex \Large x] and then calculating *[tex \Large T\,-\,x]

																
John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
*[illustration darwinfish.jpg]

From <https://www.algebra.com/cgi-bin/upload-illustration.mpl> 
I > Ø
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*[tex \LARGE \ \ \ \ \ \ \ \ \ \  
								
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