Answer:
5 mph
Step-by-step explanation:
c+15+c=2c+15 mph going down stream.
2.4(2c+15)=60
4.8c+36=60
4.8c=24
<span>factors of 18 = (2)(3)(3)
factors of 16 = (2)(2)(2)(2)
factors of 14 = (2)(7)
least common denominator = (2)(2)(2)(3)(3)(2)(7) = 16*9*7 = 1008 </span><span>
</span>
Answer:

And replacing using the mass function we got:
And adding the values we got:

Step-by-step explanation:
Let X the random variable of interest, on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
We want to find the following probability:

And replacing using the mass function we got:
And adding the values we got:

The answer is 36 in simplist form
400,246 ( 200,200-77=200,123 divide by .5= 400,246