Respond to this Question
Similar Questions

algebra help please
The U.S. population in 1990 was approximately 250 million, and the average growth rate for the past 30 years gives a doubling time of 66 years. The above formula for the United States then becomes P (in millions) = 250 times 2(
asked by carry on April 21, 2007 
Algerbra
The U.S. population in 1990 was approximately 250 million, and the average growth rate for the past 30 years gives a doubling time of 66 years. The above formula for the United States then becomes P (in millions)= 250 x 2(
asked by Angela on June 28, 2007 
math 117/algebra
The US population 1990 was approximately 250 million, and the average growth rate for the past 30 years gives a doubling time of 66 years. The above formula for the US then becomes P(in millions) = 250 x 1(y  1990)/66 (1) What
asked by Diana on June 22, 2007 
MATH
A table of the U.S. population in millions indicated in 1960 the population was 181 million, in 1970 the population was 205 million, in 1980 the population was 228 million, and in 1990, the population was 250 million. Describe the
asked by Stacy on October 8, 2009 
MATH
Use the following information regarding the farm population(in millions of persons)from 1945 to 1990. Year 1945(24.3 millions of persons), 1990(4.4 Millions of Persons). a. Write a linear model for the farm population, y, in
asked by Gien on March 31, 2008

Math
From 1990 to 2006, the population, p (in millions), of a large city can be modeled by p = 1.1(1.05)t, where t is the number of years since 1990.
asked by mari on August 24, 2014 
Math
Use the following information regarding the farm population(in millions of persons)from 1945 to 1990. Year 1945 1990 Millions of Persons 24.3 4.4 a. Write a linear model for the farm population, y, in millions of persons. Let X=0
asked by GGe on March 31, 2008 
Math
Use the following information regarding the farm population(in millions of persons)from 19451990. Year 1945 1990 Millions of persons 24.3 4.4 a. Write a linear model for the farm population,y,in millions of persons.Let x=0
asked by Danny on March 31, 2008 
PreCalc
You know the population of your nation was 151 million in 1990 and 173 million in 2000. Use the model f(t) = P e^rt to model your nationâ€™s population t years after 1990. Using the correct rate of population growth, predict the
asked by Kristian on October 5, 2017 
6th grade Math
I need some help figuring out how to work the word problem below. It says in 2000, the population of the United States was 280 million people. Between 1990 and 2000, the population grew by about 12%. What was the US population in
asked by Brandi on September 13, 2012