The manager at a car dealership is tracking the selling prices of two different used car models. When the tracking began, the selling price of model A was less than $8,000, and the selling price of model B was at most $10,000. The manager has determined that the price of model A is decreasing at a rate of 12% each year, and the price of model B is decreasing at a rate of 15% each year. Which system of inequalities can be used to determine after how many years, t, that the selling price, y, will be the same for both car models? A. B. C. D.

(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

lol.

it's ok we all do this sometimes.

-aparri

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.