Question 975989
<font face="Times New Roman" size="+2">


She started with $8750, 20% of which is $1760 for the downpayment leaving $6990 to invest.


Let *[tex \Large x] represent the amount invested at 7%, then since it was all invested one place or the other the amount invested at 4% had to be *[tex \Large 6990\ -\ x].


The return on the 7% investment is then *[tex \Large 0.07x] and the return on the *[tex \Large 4%] investment is then *[tex \Large 0.04(6990\ -\ x)], and the sum of these two amounts is $420.


So:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 0.07x\ +\ 0.04(6990\ -\ x)\ =\ 420]


Solve for *[tex \Large x], then calculate *[tex \Large 6990\ -\ x]


Still think it is a tough one?


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

*[tex \Large \ \
*[tex \Large