In 2003, the population of an african country was about 8.5 million people, which is 1 million more than 3
times the population in 1950.
enter and solve an equation to find the approximate population p (in millions) in 1950.
an equation is
the approximate population in 1950 was
million people.

The approximate population in 1950 was 2.5 million people

Step-by-step explanation:

In 2003, the population of an African country was about 8.5 million

according to the question,

8.5 million =1 million+ 3 x population in 1950

so,

=>8.5 million - 1 million = 3 x population in 1950       [subtract 1million]

=>7.5 million =3 x population in 1950

=>(7.5/3) million = population in 1950                   {divided by 3}

=>2.5 million = population in 1950

(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