+0

# help

+2
33
1
+350

im not good at math

A hotel is in the shape of a​ cylinder, with a circular foundation. The circumference of the foundation is

2 times the​ radius, increased by

205.44 ft. Find the radius of the circular foundation. Use 3.14 as an approximation for

piπ.

The radius of the foundation is approximately ___ ft, ft2 ft3

I need a tutor

Sort:

#1
+79846
+2

C  = 2r  +  205.44    (1)  and  C  =  2 * 314 * r     (2)

Set (1)  =  (2)   and we have that

2r + 205.44  =  2 * 3.14 * r     simplify the right side

2r + 205.44  =  6.28r       subtract  2r from each side

205.44  =  4.28r       divide both sides by  4.28

48  =  r      [ the radius is 48 ft ]

CPhill  Nov 29, 2017

### 6 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details
{"found_math": false, "script_math_tex": 0, "script_math_asciimath": 0, "math_annotations": 0, "math_alttext": 0, "mathml": 0, "mathjax_tag": 0, "mathjax_inline_tex": 0, "mathjax_display_tex": 0, "mathjax_asciimath": 0, "img_math": 0, "codecogs_latex": 0, "wp_latex": 0, "mimetex.cgi": 0, "/images/math/codecogs": 0, "mathtex.cgi": 0, "katex": 0, "math-container": 0, "wp-katex-eq": 0, "align": 0, "equation": 0, "x-ck12": 0, "texerror": 0}