The expiration w over 30 where w is a person's weight in pounds is used to find the approximate number of quarts of blood in the person's body how much quarts of blood does a hundred and twenty pound person have

w = weight, qb = quarts of blood

w/30 = qb

w = 120 (given)

Plug in 120 for w, and simplify

120/30 = qb

qb = 120/30

qb = 40

Quarts of Blood = 40

hope this helps

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! )

1) is right

step-by-step explanation: