Sami and her friend went to the candy store. each of them purchased a bag of jelly beans. sandra bag weighed 1.5 pounds. her friends bagweighed 2.5 pounds. if the candy is $4.50 per pound, how much did they spend altogether?

If the candy is $4.50 per pound, Sami and her friend spent $ 18 altogether.

Solution:

Given that, Sami and her friend went to the candy store.

Each of them purchased a bag of jelly beans

Weight of sami bag = 1.5 pound

Weight of her friend bag = 2.5 pound

Cost of candy per pound = 4.50

We have to find how much did they spend altogether

Total weight of candy = Sandra bag weight + her friend bag weight

= 1.5 + 2.5 = 4 pounds

Total cost = number of pounds x 4.5 per pound

Hence, they spent $ 18 altogether.

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! )

1.3 million hoops i believe