It is estimated that the city of Houston, Texas, will double in size every 35 years. If the population is currently 2.4 million people, how many people will there be in 20 years?

Question

jdoe0001 · Answer

we know that in 35 years FROM NOW, the population will double, so it'll be 2.4 + 2.4

so in 35 years it will steadly increase by 2.4 million folks
so how about in 20 years then?  how much will be the increase?   well $\large \begin{array}{llll}
years&increase
\\hline\
35&2.4\
20&x
\end{array}\implies \cfrac{35}{20}=\cfrac{2.4}{x}$

solve for "x" to find the INCREASE and add it to today's current population, or 2.4

anonymous · Answer

it do not understand is it 3.77

anonymous · Answer

oh no its 3.57