Asurvey shows that 67% of peanut butter lovers prefer chunky-style. out of 850 people surveys, how many can be predicted to say they prefer chunky-style peanut butter?

I like to use this formula cause it's really useful when it comes to these problems:

   Part                  Percent

    = 

  Whole                 100

So, you basically plug in the numbers into the equation, it's really easy:

    ???                  67%

   =  

    850                  100

Then, you cross multiply. 67% x 850 = 56,950 / 100 =

And the answer to your question is: 569.6 or rounded is 570.

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional