Alice measured her belt to be 22 inches long using a yardstick but she didn't start her measurement at zero .What might be the two endpoints of her belt on her yardstick? Write a subtraction sentence to match your idea.

y-x=22

Step-by-step explanation:

If Alice had started at zero, and she measured her belt to be 22 inches long

End Point- start point= 22

22-0=22

Let x be the starting point of measurement

Let y be the ending point of measurement

It means therefore that: y-x=22

Her two points will be values of x and y that satisfies the equality

y-x=22.

E.g. If y=28, x=6

28-6=22. These are possible endpoints.

However, if y=27, x=6

y-x=27-6=21

These are not possible endpoints.

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! )

answer: about 22.67

step-by-step explanation: