philjaco5667 philjaco5667
  • 01-08-2020
  • Mathematics
contestada

A pair of dice is rolled. What is the probability that the sum is 9 or that the first number is a 2? Please show you're work!

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 01-08-2020

Answer:

5/18

Step-by-step explanation:

There are 36 possible outcomes

There are 6 with a 2 as the first roll

There are 4 with a sum of 9

P( sum is 9 or that the first number is a 2)

                        =  sum is 9 or that the first number is a 2/total

                           ( 6+4) / 36

                          =10/36

                           =5/18

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jilliansgodfrey jilliansgodfrey
  • 07-01-2021

Answer:

zAdsfad

Step-by-step explanation:

Answer Link

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