A reindeer runs 20 1/4 miles in 3 hours. At that rate, how many miles does it run in 1 hour?
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right answer.
makes sense.
step by step.
^can you guys please help me make sure I got my answer right, thank youu;)
(choices of the answers: 3 1/4; 6 3/4; 12 1/4; 60 3/4)

6 3/4 miles

Step-by-step explanation:

We can use ratios to solve

20.25 miles         x miles

=

3 hours              1 hours

Using cross products

20.25 * 1 = 3x

Divide each side by 3

20.25 /3 = x

6.75 = x

Changing to a fraction

6 3/4

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! )

step-by-step explanation:

the answer is 89 d

i took the test