I ned help quick

20 hours

Step-by-step explanation:

If your computer can download a movie in 5 hours, then it downloads of a movie in 1 hour.

The extra processor in 1 hour, reduces the time down to 5 hours, so it downloads of the movie in 1 hour.

The time that the extra processor will spend to download a whole movie added to   will equal .

So our equation is .

To simplify this, lets multiply all sides by 20x.

Now we can simplify this equation.

So the extra processor alone would take 20 hours to download the movie.

Hope this helped!

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560