Question 1170298
.
Pho lin has investments in ebay and amazon stock. On match 9,2007, ebay stock closed at $30.82 per share 
and Amazon stock closed at $38.84 per share. Phos stock portfolio was worth $2866.60 at the end of the day. 
If pho owns 20 more shares of Amazon stock than eBay stock, how many of each type of stock does she own?
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<pre>
Let E be be the number of the eBay shares.

Then the number of the Amazon shares is (E+20).


Pho' stock portfolio was worth $2886.60.  It gives you an equation

    30.82*E + 38.84*(E + 20) = 2866.60.


From this equation

    E = {{{(2866.60-30.84*20)/(30.82+38.84)}}} = 30.


<U>ANSWER</U>.  30 eBay shares and (30+20) = 50 Amazon shares.
</pre>

Solved.


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It is a standard and typical problem on shares.


If you need more details,  &nbsp;or if you want to see other similar problems solved by different methods, &nbsp;look into the lesson 

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/coordinate/lessons/Using-systems-of-equations-to-solve-problems-on-SHARES.lesson>Using systems of equations to solve problems on shares</A> 

in this site.


You will find there different approaches &nbsp;(using one equation or a system of two equations in two unknowns), &nbsp;as well as 
different methods of solution to the equations &nbsp;(Substitution, &nbsp;Elimination).


Also, &nbsp;you have this free of charge online textbook in ALGEBRA-I in this site

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson>ALGEBRA-I - YOUR ONLINE TEXTBOOK</A>.


The referred lesson is the part of this online textbook under the topic &nbsp;"<U>Systems of two linear equations in two unknowns</U>".



Save the link to this online textbook together with its description


Free of charge online textbook in ALGEBRA-I
https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson


to your archive and use it when it is needed.