Question 714291
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Let *[tex \LARGE r] represent the interest rate on the smaller investment as a decimal.  Then the interest rate on the larger investment must be *[tex \LARGE r\ +\ 0.04].  Then it follows that the amount of interest earned on the smaller investment is *[tex \LARGE 800r] and the amount of interest earned on the larger investment is *[tex \LARGE 2000(r\ +\ 0.04)].  The difference being $146, we write:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 2000(r\ +\ 0.04)\ -\ 800r\ =\ 146]


Solve for *[tex \LARGE r], then calculate *[tex \LARGE r\ +\ 0.04].  Then convert each to percent.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
<font face="Math1" size="+2">Egw to Beta kai to Sigma</font>
My calculator said it, I believe it, that settles it
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