When you are dividing fractions you need to flip the second fraction and change the sign to multiply. So for this question you'd get:
5/6 x 8/7
then you multiply as normal.
getting you the answer of 40/48
this is equivalent to 5/6
Sorry Can’t Just trying to be helpful
Answer:
I think 99in
Step-by-step explanation:
3x13=39
5x12=60
39+60=99
1/4 probability because there is 4 suits and you are looking for one out of the four suits.<span />
Answer:
0.0869
Step-by-step explanation:
The arc electronic company had an income of 90 million dollars last year.
Mean(μ) = 75 million dollars
Standard deviation (σ) = 11 million dollars
Probability that the randomly selected will earn more than arc did last year = Pr(x>90)
Using normal distribution,
Z = (x - μ) / σ
Z = (90 - 75) / 11
Z = 15/11
Z = 1.36
From the normal distribution table, 1.36 = 0.4131
Φ(z) = 0.4131
Recall that when Z is positive, Pr(x>a) = 0.5 - Φ(z)
= 0.5 - 0.4131
= 0.0869
