Pine bluff middle school is having its annual spring fling dance, which will cost $400. the student treasurer reported that the dance fun has $75 left over from last year. each ticket to the dance costs $4 let t represent the number of tickets sold. write an inequality to determine how many tickets must be sold to pay for this year's dance

554.4

step-by-step explanation:

44*12.6=544.4

i got 142 as my answer

step-by-step explanation:

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