<PRE><B>Question 63293</B>
.
Rashad wants to wallpaper the four walls of his bedroom. the room is rectangular and measures 11 feet by 13 feet. 
the cieling is 10 feet high. a roll of wallpaper at a store is 2.5 feet wide and 50 feet long. how may rolls should 
he buy?
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&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The solution in the post by other person is incorrect.

&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;See my correct solution below.



The surface area to cover by wall paper is the area of four walls


    &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;11*10 + 13*10 + 11*10 + 13*10 = 480 ft^2.


The area of one roll is  2.5*50 = 125 ft^2.


Find the ratio  {{{480/125}}} = 3.84.


We should round this decimal, 3.84, to the closest GREATER integer number, which is 4.


&lt;U&gt;ANSWER&lt;/U&gt;.  &amp;nbsp;&amp;nbsp;Rashad should buy 4 roll of wallpaper.
&lt;/pre&gt;

Solved correctly.



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