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ehidna [41]
2 years ago
9

There is a train that travels from Seattle, Washington, to Los Angeles, California. In its first `2` hours, the train went about

`80` miles, including stops. At this rate, how far does the train travel per hour?
Mathematics
2 answers:
lesya692 [45]2 years ago
6 0

Answer:

t = 2

v = 80

d = v \times t

d = 2 \times 80

\frac{80}{2}

answer = 40

Step-by-step explanation:

<h2>HOPE IT HELPS YOU #ITZADMIRER</h2>
BARSIC [14]2 years ago
4 0

Answer:

  40 miles

Step-by-step explanation:

At this rate, it travels 80 miles per 2 hours, or 40 miles per 1 hour.

The train's travels 40 miles per hour.

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Answer:

(a) The value of <em>x</em> is 0.30.

(b) The probability that a reported case of rabies is not a raccoon is 0.45.

(c) The probability that a reported case of rabies is either a bat or a fox is 0.15.

Step-by-step explanation:

Denote the events as follows:

<em>R</em> = reported case of rabies is a raccoon

<em>F</em> = reported case of rabies is a fox

<em>B</em> = reported case of rabies is a bat

<em>O</em> = reported case of rabies is a some other animal.

The data provided is:

P (R) = 0.55

P (F) = 0.11

P (B) = 0.04

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(a)

A property of a probability distribution is that the sum of all individual properties is 1.

That is, \sum P(X)=1

Compute the value of <em>x</em> as follows:

\sum P(X)=1\\P(R)+P(F)+P(B)+P(O)=1\\0.55+0.11+0.04+x=1\\0.70+x=1\\x=1-0.70\\x=0.30

Thus, the value of <em>x</em> is 0.30.

(b)

The probability of the complement of an event is the probability of its not happening.

P(A^{c})=1-P(A)

Compute the probability that a reported case of rabies is not a raccoon as follows:

P(R^{c})=1-P(R)\\=1-0.55\\=0.45

Thus, the probability that a reported case of rabies is not a raccoon is 0.45.

(c)

Compute the probability that a reported case of rabies is either a bat or a fox as follows:

P(B\cup F)=P(B)+P(F)\\=0.11+0.04\\=0.15

Thus, the probability that a reported case of rabies is either a bat or a fox is 0.15.

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

The x- and y-intercepts are easily found:

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Answer:

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Step-by-step explanation:

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