Which number from the set {0, 2, 4, 6} makes the equation true?

7x − 3 + 4x = 19

A) 0
B) 2
C) 4
D) 6

B) 2

Step-by-step explanation:

Alright. So you have 7x - 3 + 4x = 19.

Combine like terms, and you get 11x - 3 = 19.

If you know how to solve 2-step equations, this will be easy! I'll explain it either way though :)

1. You want to get rid of adding/subtracting first by canceling the number out. In this situation, that number is 3.

11x - 3 = 19

    + 3   + 3

11x = 22

2. Then you want to get rid of multiplying/dividing by doing the same. You want to get the variable all by itself.

11x = 22

11x/11 = 22/11

x = 2

Hope this helped! :)

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