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avatar+299 

Use the percent or equation to answer the questions.

 

Question 1      35% of what number is 21?          I need help please

 

Question 2      17 is what percent of 68?          I got 25% for question 2 but I am not sure

 

Question 3       what number is 16% of 80?       answer I think is 12.8 

 Jan 30, 2018
 #1
avatar+8866 
+3

35%  of what number is  21

 

35%  *  what number  =  21

 

35/100  *  what number  =  21       Multiply both sides of this equation by  100/35 .

 

what number   =   21 * 100/35

 

what number   =  60

 

35%  of  60  is  21

 

 

17 is what percent of  68 ?   In other words...

 

17 out of 68 is what out of 100  ?

 

17 / 68   =   what / 100

 

17 / 68 * 100   =   what

 

25   =   what

 

17  is  25  percent of  68 ,  as you found!  smiley

 

 

what number is  16%  of  80

 

what number   =   16%  *  80

 

what number   =   16/100 * 80

 

what number   =   12.8

 

12.8  is  16%  of  80 ....You got it!!

 Jan 30, 2018
 #2
avatar+299 
+1

thank you

Nerd123  Jan 30, 2018

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