Doug has $800 in his checking account. He spends $40 each day out of the account
Which inequality can be used to find d,
the number of days it will take until his account has
less than $200 dollars in it?
A) 400-800 < 200
B) 400-800 < 200
C) 800+400 < 200
D) 800+40ds 200
E) 800-40d < 200
F) 800-40d s 200
Students, draw anywhere on this slide!

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