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Sholpan [36]
3 years ago
6

Two cities are 847 miles apart. Convert this distance to kilometers. State your answer to the nearest tenth of a kilometer

Mathematics
2 answers:
Alisiya [41]3 years ago
5 0
This will help u
the answer is 1360 km.
1 mile= 1.609344km
847mile=1.609344×847
= 1363.11437km
= 1363km
=1360km

hope this helps

Ludmilka [50]3 years ago
3 0
1 mile= 1.609344km

847x1.609344 = 1,363.11437 = 1,363km
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Step-by-step explanation:

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What is the answer to this problem (x+3)(x+5)
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Easy, showing work,

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x^{2}+8x+15   (x^{2}+5x+3x+15)

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The angle between the minute hand and the hour hand of a clock is 90 degrees. What time is it? Justify your answer.
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3 0
3 years ago
The probability that a professor arrives on time is 0.8 and the probability that a student arrives on time is 0.6. Assuming thes
saul85 [17]

Answer:

a)0.08  , b)0.4  , C) i)0.84  , ii)0.56

Step-by-step explanation:

Given data

P(A) =  professor arrives on time

P(A) = 0.8

P(B) =  Student aarive on time

P(B) = 0.6

According to the question A & B are Independent  

P(A∩B) = P(A) . P(B)

Therefore  

{A}' & {B}' is also independent

{A}' = 1-0.8 = 0.2

{B}' = 1-0.6 = 0.4

part a)

Probability of both student and the professor are late

P(A'∩B') = P(A') . P(B')  (only for independent cases)

= 0.2 x 0.4

= 0.08

Part b)

The probability that the student is late given that the professor is on time

P(\frac{B'}{A}) = \frac{P(B'\cap A)}{P(A)} = \frac{0.4\times 0.8}{0.8} = 0.4

Part c)

Assume the events are not independent

Given Data

P(\frac{{A}'}{{B}'}) = 0.4

=\frac{P({A}'\cap {B}')}{P({B}')} = 0.4

P({A}'\cap {B}') = 0.4 x P({B}')

= 0.4 x 0.4 = 0.16

P({A}'\cap {B}') = 0.16

i)

The probability that at least one of them is on time

P(A\cup B) = 1- P({A}'\cap {B}')  

=  1 - 0.16 = 0.84

ii)The probability that they are both on time

P(A\cap  B) = 1 - P({A}'\cup {B}') = 1 - [P({A}')+P({B}') - P({A}'\cap {B}')]

= 1 - [0.2+0.4-0.16] = 1-0.44 = 0.56

6 0
3 years ago
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asambeis [7]

Answer:

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Step-by-step explanation:

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We need to multiply the first equation by -0.1:

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We now sum both equation:

0.1*x = 2.7

x = 2.7/0.1 = 27 gallons

y = 45 - 27  = 18 gallons

6 0
3 years ago
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