Ten years ago, the population of Northern Cascadia was 20% smaller than the population that of Southern Cascadia, but over the last ten years, the population of Southern Cascadia declined by 15% while that of Northern Cascadia increased by by 30% with the result that Northern Cascadia now has 12,576 more people than Southern Cascadia had ten years ago. How many people does each country have now? 4.

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Q: If tacomas population in 2000 is 200,000 and it grows by 8% a year, what is the population in 2012?

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.