SOLUTION: I got this wrong, can someone help walk me through how these are done. I hate word problems. Missed 6 of them. Combined population of City A and City b was 25,000 in 1990. By

Question 91050: I got this wrong, can someone help walk me through how these are done. I hate word problems. Missed 6 of them.
Combined population of City A and City b was 25,000 in 1990. By 1995, the population of city a increased 10% and city b increased 9%. Total population increased by 2380 people, so what was the population in 1990?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Combined population of City A and City b was 25,000 in 1990. By 1995, the population of city a increased 10% and city b increased 9%. Total population increased by 2380 people, so what was the population in 1990?
:
Let x = population of City A
Then
(25000-x) = population of City B
:
A simple equation:
.10x + .09(25000-x) = 2380
:
.1x + 2250 - .09x = 2380
:
.1x - .09x = 2380 - 2250
:
.01x = 130
:
x = 130/.01
:
x = 13000 is the population of city A in 1990
:
25000 - 13000 = 12000 is the population of city B in 1990
:
:
Check solutions:
.1(13000) + .09(12000) =
1300 + 1080 = 2380 as given
RELATED QUESTIONS
One number exceeds another number by 26. the sum of these numbers is 64. What are these... (answered by scott8148)

I hate word problems! Can someone help me with this problem please? Two inches of... (answered by Alan3354)

I thought I knew how to do these but I obviously do not because I missed them on my... (answered by scott8148,Earlsdon)

5(4[3(2 + x)]) - 5(-4[-3(2 - x)]) I need help simplifying this can someone help me its an (answered by rothauserc,Fombitz)

I am having problems with this word problem. Can you help me? The printer uses 5 reams (answered by ikleyn)

Im sorry if this is in the wrong place, knew it went in either Polynomials or quadratic.... (answered by stanbon)

1. The Queen Mary is a large cruise ship that has 8,123,700 cubic feet of cargo space.... (answered by stanbon)

Long division of polynomials? Help! Can you walk me through how to divide polynomials... (answered by solver91311)

Hey :D i attemped this geometry based homework 2 weeks ago, i managed to do questions... (answered by scott8148)