I'm at a loss here, I cannot get my brain to function this evening, help please. Do not give me the answer but some help. Here is what I have so far:
$9500 is invested, part of it at 11% and part of it at 6%. For a certain year the total yield is $865.00. How much was invested at each rate?
x + y = 9500
.11x + .06y = 865

Question

I'm at a loss here, I cannot get my brain to function this evening, help please. Do not give me the answer but some help. Here is what I have so far:
$9500 is invested, part of it at 11% and part of it at 6%. For a certain year the total yield is $865.00. How much was invested at each rate?
x + y = 9500
.11x + .06y = 865

anonymous · Answer

that should work but it would be easier to write the second equation as 
$$11x+6y=86500$$

anonymous · Answer

or even easier still  would be to use one variable instead of two and go right to 
$$11x+6(9500-x)=86500$$

anonymous · Answer

Ahh, I think I see where my brain freeze was hitting me I was looking at the equ. the wrong way. Thanks

anonymous · Answer

yw