Mathematics, 29.05.2021 02:20 madelyngv97
A certain city prides itself on having sunny days. If it rains one day, there is a 90% chancethat it will be sunny the next day. If it is sunny one day, there is a 30% chance that it willrain the following day. (Assume that there are only sunny or rainy days.)
Required:
Does the city have sunny days most of the time? In the long run, what fraction of all days is sunny?
Answers: 1
Mathematics, 22.06.2019 01:00
Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x – 3y = -9 tiles subtract 3x + 3y = -6 (obtained in step 1) from 2x – 3y = -9 (given) to solve for x. substitute the value of x in the first equation (x + y = -2) to get y = 1. the solution for the system of equations is (-3, 1). x = -15 the solution for the system of equations is (-15, 13). add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x. x = -3 substitute the value of x in the first equation (x + y = -2) to get y = 13. multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.
Answers: 1
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