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How to solve this problem?

 Apr 21, 2021
 #1
avatar+2118 
0

The circumfrench is 2pi*r. 

the raduis is 225. 

Then, remember that it's 40% of the circumfrence. :))

 

=^._.^=

 Apr 21, 2021
 #2
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How I can get 40% of the circumference of the whole circle?

Guest Apr 21, 2021
 #3
avatar+2118 
0

40% is just 4/10 or .4

So you take the circumfrence and multiply by .4

:))

 

=^._.^=

catmg  Apr 21, 2021
 #4
avatar+121002 
+1

40%  of a crcle's  circumference  =  (4/10) * 2 pi  =  (4/5) pi

 

The  total  distance  run  /   ft /s  =  time

 

So

 

[ 300 + 300  +  (4/5) pi * 225  ]  / 4   ≈   291 seconds    =    4 minutes  51 seconds 

 

 

cool cool cool

 Apr 21, 2021
edited by CPhill  Apr 21, 2021
edited by CPhill  Apr 21, 2021

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