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I have no idea how to do these.

 

 Jan 13, 2020
 #1
avatar+20254 
+2

I'll start ya on a couple, then you try....

 

1   Part is 14    total is   25      14/25  x 100% =     ? %

 

 

2   part = 16   total = ?   percent = 80 %

       16/? x100% = 80 %     

        16/?  x 100 = 80

         1600/? = 80

           1600/80 = ? 

 Jan 13, 2020
 #2
avatar+370 
+2

I'll try numbrrer 5;    this one's a bit tricky

  Important: In a proportion "Total" is always 100%  and  "Part" can be any number, including 100 and larger             

 Question:    15 is what percent of 5 ?

 Part  =   15

 Total =    5  (100%)

  Percent  = ?              5 : 100%  =  15 : X      X = (100% * 15) / 5    X = 300% 

  Answer:   15 is 300% of 5.  indecision      

 Jan 13, 2020
edited by Dragan  Jan 13, 2020

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