SOLUTION: The population of the U.S. in 1999 was estimated to be 273.1 million people. This was an increase of 34% from the population in 1969. What was the population of the U.S. in 1969.

Algebra ->  Percentages: Solvers, Trainers, Word Problems and pie charts -> SOLUTION: The population of the U.S. in 1999 was estimated to be 273.1 million people. This was an increase of 34% from the population in 1969. What was the population of the U.S. in 1969.       Log On


   

Question 178557: The population of the U.S. in 1999 was estimated to be 273.1 million people. This was an increase of 34% from the population in 1969. What was the population of the U.S. in 1969.


Let X be the population of people for 1969
X + 34% = 273.1
X + .34 = 273.1
.34X = 273.1
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!

let x=population in 1969.
34% increase of x = 273.10x10%5E6 (population in 1999.
Translating into detailed eqn:
x%2B0.34%28x%29=273.10x10%5E6
x%281%2B0.34%29=273.10x10%5E6

highlight%28x=203.80597x10%5E6%29 ANSWER --->population in 1969.
Check:
34% population in 1969=popl'n in 1999 - popl'n in 1969
0.34%28203.80597x10%5E6%29=%28273.10-203.80597%29x10%5E6
69.29403x10%5E6=69.29403x10%5E6
thank you,
Jojo