A passenger train has tickets available for 12 window seats and 8 aisle seats. The nest person to buy a ticket will be randomly
2 answers:
Answer: Our required probability is 0.4.
Step-by-step explanation:
Since we have given that
Number of window seats = 12
Number of aisle seats = 8
Total number of seats = 12+8 = 20
According to question, the next person to buy a ticket will be assigned to one of those seats.
Probability that the next person will be assigned to an aisle seat is given by
Hence, our required probability is 0.4.
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The speed of wind and speed of plane in still air are 23 and 135 km/h respectively.
<u>Step-by-step explanation:</u>
Let the speed of wind and speed of plane in still air are w and p km/h respectively.
The effective speed on onward journey was
................(1)
The effective speed on return journey was
..............(2)
Adding equation (1) and equation (2) we get,
⇒
⇒
⇒
Putting value of in
we get:
⇒
⇒
⇒
Therefore ,The speed of wind and speed of plane in still air are 23 and 135 km/h respectively.
Answer:
c = 12.73
Step-by-step explanation:
a^2 + b^2 = c^2
9^2 + 9^2 = c^2
81 + 81 = c^2
162 = c^2
c =
c = 12.7279221
c = 12.73
Mark brainliest please!