A$480 car stereo is marked up 50% and then discounted 50%. will the final price of the car stereo be $480?

Hi! Let's look at this question. First of all, let's put the question into more understandable terms.

A = 480 + (480 * 1.5)

B = A - (A * 1.5)

The question wants to know, is B = 480.

Break it down.

50% of 480 is 240, so A = 480 + 240 = 720.

A = 720

50% of 720 is 360, so B = 720 - 360 = 360.

B = 360

B =/= 480, so the final price of the car stereo will not be $480.

go on the tube you might find some information there

step-by-step explanation:

i found the life tables for the year 2012. 

life table of males at age 30. probability of dying between ages x and x+1

total population:  

29–30 . . . . . . . . . . . . 0.001030

30–31 . . . . . . . . . . . . 0.001061

males:  

29–30 . . . . . . . . . . . . 0.001420

30–31 . . . . . . . . . . . . 0.001448

white population

29–30 . . . . . . . . . . . . 0.001005

30–31 . . . . . . . . . . . . 0.001037

white males

29–30 . . . . . . . . . . . . 0.001372

30–31 . . . . . . . . . . . . 0.001399

non hispanic white population

29–30 . . . . . . . . . . . . 0.001083

30–31 . . . . . . . . . . . . 0.001116

non hispanic white males

29–30 . . . . . . . . . . . . 0.001477

30–31 . . . . . . . . . . . . 0.001503

jacob, non hispanic white male. 30 years old.

probability that jacob lives to be 30 years old. 

since the given probabilities are probabilities of dying, i think we simply subtract it from 1 to get the probability of living. we will use the probability of non hispanic white male.

                                          probability of living to be 30 y.o.

29 - 30 : 1 - 0.001477 = 0.998523

30 - 31 : 1 - 0.001503 = 0.998497