Question 1135617
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<pre>
The compound inequality you are asking for is


    3 <= 2x + 5 <= 17.


If you want to get its solution, then


a)  subtract 5 from all three components of the inequality


    3 - 5 <= 2x <= 17-5,   or

    -2    <= 2x <= 12


b)  divide by 2 all three components of the last inequality


     -1 <= x <= 6.


It is your <U>ANSWER</U>.  Penelope's number is between -1  and 6, inclusively.    
</pre>

Answered.


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On compound inequalities, &nbsp;see the lesson

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/Inequalities/Solving-compound-inequalities.lesson>Solving compound inequalities</A> 

in this site.