Answer:
A. x = 3
Step-by-step explanation:
5x+15 + 2x = 24 +4x
7x+15=24+4x
7x+15-15=24+4x-15
7x=4x+9
7x-4x=4x+9-4x
3x=9
3x/3=9/3
x=3
Answer:
90 cookies would be served to 30 students.
Step-by-step explanation:
First, simplify the first ratio given to us.
45/15 = 3/1
Every student is given 3 cookies. You are now serving 30 students. To solve, multiply 3 with 30.
3 x 30 = 90
90 cookies would be served to 30 students.
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<em>H</em><em>ope</em><em> </em><em>it</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>you</em><em>.</em><em>.</em>
Answer: Our required probability is 0.384.
Step-by-step explanation:
Since we have given that
In 24 hours,
λ = 20
In 6 hours,
As we know that it is a Poisson distribution.
E[X] = λ = 5
Probability that more than 6 trucks will pass her apartment is given by
Hence, our required probability is 0.384.