Zach invests ​$20 in the stock market at the beginning of the week. He decides to invest an additional ​$30 at the end of the week. He loses 40​% of his total investment. How much money does Zach ​lose?

$20

Step-by-step explanation:

$20+$30=$50

50×40%= $20

(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

answer: 8d

step-by-step explanation:

45+5= 50+5=55+5=60