ACT practice test math question!

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1

<p>so i did a practice test that has the answers, but that lacks answer explanations. so i would GREATLY appreciate if someone could explain the answer for the following question!
(btw, it's a real practice test from the '07-'08 booklet)</p>

<ol>
<li>For a project in Home Economics class, Kirk is making a tablecloth for a circular table 3 feet in diameter. The finished tablecloth needs to hang down 5 inches over the edge of the table all the way around. To finish the edge of the tablecloth, Kirk will fold under and sew 1 inch of the material all around the edge. Kirk is going to use a single piece of rectangular fabric that is 60 inches wide. What is the shortest length of fabric, in inches, Kirk could use to make the tablecloth without putting any separate pieces of fabric together?
F. 15
G. 23
H. 30
J. 42
K. 48</li>
</ol>

<p>The answer is K. Explain why if you get it!</p>

2

<p>I am no math genius but i am pretty sure this is why. I drew a picture it was easier to explain this way…</p>

<p><a href=“http://i51.■■■■■■■.com/8xm1jn.jpg[/url]”>http://i51.■■■■■■■.com/8xm1jn.jpg&lt;/a&gt;&lt;/p&gt;

3

<p>best explanation i could give in words with no picture:</p>

<p>well the table is already 36 inches in diameter (3feet) plus 5 inches on either side which is plus 10 (so far 36+10=46) then an inch around that on either side to sew so 46+2=48 and thats K</p>

4

<p>3 feet = 36 inch diameter</p>

<p>36 inch diamater + 10 inches of hang for the sides + 2 inches for edge = 48 inch diameter</p>