The equation of a line is −2x+5y=−20. what is the x-intercept of the line? enter your answer in the box.

x = 10

Step-by-step explanation:

Same as your previous question, you get x-intercept when y = 0

-2x +5y = - 20

-2x +5(0) = - 20

-2x = - 20

x = 10

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