Rosa needs 8 pounds of apples to make 4 apple pies for a bake sale. if it takes an hour to bake one pie, how long will it take rosa to bake all of the pies if she bakes them one at a time?

240 minutes

because each hour is 60 minutes and she needs to bake 4 pies that each take 1 hour each.

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

b, 20 yards

step-by-step explanation: