Write an equation and solve 21 is 35% of what number

Step-by-step explanation:

35/100 of x=21

x=100*21/35

x=2100/35

x=60

21 is 35%, so divide 21 by 35 to get 1%

21 divided by 35 = 0.6

The answer times 100 equals to 100%

0.6 x 100% = 60

Ans: 60

:0 ITS MAGIC

the answer   is 200

step-by-step explanation:

this is a problem about poisson probabilities.   i don't know if you've

already studied poisson distributions, or if you have a place to look

to read more about the subject.  

here's how you can see a poisson distribution coming.   when there are

a lot of events that may happen at any time (or any place), and when

you're counting how many of them happen at a particular time (or a

particular place), and each event is independent of the others, then

the result is a poisson distribution.   this is roughly true for the

chocolate chips; one chip being in a cookie has only a small effect on

the probability that another chip will be in the cookie.

once you know you have a poisson distribution, you know a lot.   there

is only one parameter to a poisson distribution, so if you know the

mean, you know everything.   the form of the distribution is

  probability of n chips = {[e^(-x)]*(x^n)} / (n! )