Question

A country's population in 1992 was 70 million. In 1998 it was 76 million. Estimate the population in 2012 using the exponential growth formula. Round your answer to the nearest million.

Answer 1

Start out by writing your equation.
y=a(1+r)^x

76=70(1+r)^6
76/70=(1+r)^6

r=0.0138

y=70(1.0138)^x

Answer 2

Now just plug in 20 for x

Answer 3

So, 92.0754? Correct?
@Aveline

Answer 4

That's the number of million people. So it would be about 92,075,435 people. Rounded to the nearest million is 92,000,000

Answer 5

Alright. That's what I thought. :) Thankyou!