<PRE><B>Question 702590</B>
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Let *[tex \LARGE x] represent Maria&#39;s expense.  Then *[tex \LARGE x\ -\ 10] is Amy&#39;s, and *[tex \LARGE 2(x\ -\ 10)] is Sadie&#39;s.  And the sum is $310.


*[tex \LARGE \ \ \ \ \ \ \ \ \ x\ +\ x\ -\ 10\ + 2(x\ -\ 10)\ =\ 310]


Solve for *[tex \LARGE x], then calculate *[tex \LARGE x\ -\ 10] and *[tex \LARGE 2(x\ -\ 10)]


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
&lt;font face=&quot;Math1&quot; size=&quot;+2&quot;&gt;Egw to Beta kai to Sigma&lt;/font&gt;
My calculator said it, I believe it, that settles it
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