Question

In 2003, the population of an African country was about 19.5 million people, which is 2 million more than 5 times the population in 1950. Enter and solve an equation to find the approximate population p (in millions) in 1950.

Answer 1

Answer:

$P = 3.5\ million$

Step-by-step explanation:

Given

Represent 1950 Population with P and 2003 Population with Q

$Q = 19.5\ million$

Required

Determine the value of P

From the question; we have that

$Q = 2\ million + 5 * P$

Substitute 19.5 million for Q

$19.5\ million = 2\ million + 5 * P$

Subtract 2 million from both sides

$19.5\ million - 2\ million= 2\ million - 2\ million + 5 * P$

$19.5\ million - 2\ million= 5 * P$

$17.5\ million = 5 * P$

Divide both sides by 5

$\frac{17.5\ million}{5} = \frac{5 * P}{5}$

$\frac{17.5\ million}{5} = P$

$3.5\ million = P$

$P = 3.5\ million$

Hence, the 1950 population is 3.5 million