A waste management company offers containers that can hold 10, 15, or 20 cubic yards of material. The cost of renting a 10-cubic-yard container is x dollars per year, the cost of renting a 15-cubic-yard container is y dollars per year, and the cost of renting a 20-cubic-yard container is z dollars per year. Write an expression that a customer can use to calculate the total annual cost of renting two 10-cubic-yard containers, four 15-cubic-yard containers, and three 20-cubic-yard containers.

(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

the answer is b.

step-by-step explanation: