Answer:
x = 3
Step-by-step explanation:
10 + 5x = 25
take 10 from both sides 5x = 15
divide both sides by 5 x = 3
First, you would find a common denominator which is 12. You would then get 5/12 and 7/12 or 20/48 and 28/48. Using this you can see that their are 8 more girls than boys in the play. Hope you found this helpful!
Answer:
Step-by-step explanation:
Given
Required
Evaluate p(x) when x = 20
To do this, we simply substitute 20 for x
<em>Option C answers the question</em>
A sample of size n taken from a population with mean = µ and standard deviation = σ has sample mean = µ and sample s.d. = σ/√n.
If the final exam scores are normally distributed, and X is a random variable for the mean of a sample, then
Pr[X < 70] = Pr[(X - 73) / (7.8/√24) < (70 - 73) / (7.8/√24)]
… ≈ Pr[Z < -1.8842]
… ≈ 0.0298
(where Z is normally distributed with µ = 0 and σ = 1).
