SOLUTION: A small country had a population of 5.6 × 10^7 in 1990. Since then, the original population has doubled, and an additional 7.7 × 10^8 people have immigrated into the country. What

Algebra ->  Test  -> Lessons -> SOLUTION: A small country had a population of 5.6 × 10^7 in 1990. Since then, the original population has doubled, and an additional 7.7 × 10^8 people have immigrated into the country. What       Log On


   

Question 1128588: A small country had a population of 5.6 × 10^7 in 1990. Since then, the original population has doubled, and an additional 7.7 × 10^8 people have immigrated into the country. What is the population of the country now?
The population is A x 10^B where
A =
B =
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
----
population of 5.6 × 10^7 in 1990. Since then, the original population has doubled, and an additional 7.7 × 10^8 people have immigrated into the country.
----

(2)(5.6 x 10^7)

and then

(2)(5.6 x 10^7)+(7.7 x 10^8)

11.2x10^7+7.7x10^8

1.12x10^8+7.7x10^8

8.82x10^8
Only allow two-significant figures:

8.8x10^8