Aseven-question quiz has four

a. true

b. false questions followed by 3 multiple choice questions. for each multiple choice question there are four possible answers. in how many different ways is it possible to answer the seven questions?

210

Step-by-step explanation:

Formula I made up: (Don't copy it please) (x-1 + x-2 + x-3... until x-(x-1)

Add all answers possible. (4 true and falses with 2 different answers each.) (3 multiple choice with 4 possible outcomes.)

4 x 2 = 8 | 3 x 4 = 12 |

       \              /

      8 + 12 = 20

Do what I like to call Additional factorial. (it's a little different, so follow the formula above.)

x = 20

20 -1 + 20 - 2... 20-(20-1) = 210

19 + 18... + 1  = 210

Compare my answer to others if you get any because I am just in 8th grade and I am a nerd at math and I love it. Because I am in 8th grade, I have a slight possibility for being wrong. Enjoy the answer and thanks for letting me use my skills for the world. :)

17 1/3

step-by-step explanation:

d, x=8

step-by-step explanation:

simplifying

4x + -5 = 2x + 11

reorder the terms:

-5 + 4x = 2x + 11

reorder the terms:

-5 + 4x = 11 + 2x

solving

-5 + 4x = 11 + 2x

solving for variable 'x'.

move all terms containing x to the left, all other terms to the right.

add '-2x' to each side of the equation.

-5 + 4x + -2x = 11 + 2x + -2x

combine like terms: 4x + -2x = 2x

-5 + 2x = 11 + 2x + -2x

combine like terms: 2x + -2x = 0

-5 + 2x = 11 + 0

-5 + 2x = 11

add '5' to each side of the equation.

-5 + 5 + 2x = 11 + 5

combine like terms: -5 + 5 = 0

0 + 2x = 11 + 5

2x = 11 + 5

combine like terms: 11 + 5 = 16

2x = 16

divide each side by '2'.