Question 749244
<font face="Times New Roman" size="+2">


You need *[tex \LARGE x] liters of A and *[tex \LARGE y] liters of B.


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ x\ +\ y\ =\ 100]


And


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 0.10x\ +\ 0.06y\ =\ 0.07*100]


But since *[tex \LARGE x\ +\ y\ =\ 100], we know that *[tex \LARGE y\ =\ 100\ -\ x], so


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 0.10x\ +\ 0.06(100\ -\ x)\ =\ 7]


Solve for *[tex \LARGE x] and then calculate *[tex \LARGE 100\ -\ x]


By the way, precisely how much more desperate for help are you if you write "REALLY" in all caps as opposed to just writing "really", or not using "really" at all?


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
<div style="text-align:center"><a href="http://outcampaign.org/" target="_blank"><img src="http://cdn.cloudfiles.mosso.com/c116811/scarlet_A.png" border="0" alt="The Out Campaign: Scarlet Letter of Atheism" width="143" height="122" /></a></div>
</font>