Alexander completed 40% of a 50 question assignment. how many questuons did she complete?

20 questions

Step-by-step explanation:

We are given that Alexander completed 40% of a 50 question assignment and we are to find the number of questions she completed.

To find that, we will calculate 40 percent of 50 questions.

Number of questions Alexander completed = ×

Number of questions completed = × = 20

Therefore, Alexander completed a total of 20 questions out of 50.

a

step-by-step explanation:

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180