20. Suzette must commute a total of 34 miles to work. She first drives her car 10 miles to the train station
and then rides the train the rest of the way to work.
The average speed of the train is 15 mi/h faster than
the average speed of Suzette's car.
a. Express the time Suzette spends driving and the
time she spends on the train as rational expressions.
b. It takes Suzette a total of 1 hour to get to work.
Write and solve an equation to find the average
speed of Suzette's car.
c. Does Suzette spend a greater amount of time
driving or on the train? Explain.
S

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! )

the one that has a slope of 1/2 and is positive.

step-by-step explanation: 2 buckets 1 trip ; 4 buckets 2 trips and so on.

he has now walked a total of what?

if i know what this is maybe i can

step-by-step explanation: