Johnny has hit 4 more than twice the number of homeruns that Benny has hit. Johnny has hit 8 homeruns. how many homeruns has benny hit

  2

Step-by-step explanation:

You can work backward through the wording of the problem.

Johnny hit 8 homeruns, which is 4 more than (some number). Then the value of (some number) must be 8 - 4 = 4.

That (some number) is twice what Benny hit, so Benny hit 4/2 = 2 homeruns.

If you were to write an equation for b, the number of Benny's homeruns, you would write it as ...

  2b +4 = 8

Solving this works the same way as described above.

Subtract 4 to find 2b:

  2b = 8 -4 = 4

Divide by 2 to find b:

  b = 4/2 = 2

Benny hit 2 homeruns.

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! )