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anonymous

  • 5 years ago

The population of New York City increased from 7,322,564 in 1990 to 8,008,278 in 2000. The annual rate of population increase for the period was about 0.9%. 1. Write an equation for the population t years after 1990. 2. Use the equation to predict the population of New York City in 2010. Please help me with this!!!!!

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  1. anonymous
    • 5 years ago
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    okay so population after t years = population in 1990+ increase in population do you agree with this?

  2. anonymous
    • 5 years ago
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    I wish I knew... .

  3. anonymous
    • 5 years ago
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    okay tell me this. suppose your dad gave you a hundred stamps to start you off. and after that you started collecting stamps. so after 5 years, number of stamps you have = initial number of stamps(which your dad gave you) + whatever you collected in 5 years do you agree with that?

  4. anonymous
    • 5 years ago
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    sure

  5. anonymous
    • 5 years ago
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    okay great! so population of new york after t years = population of new york in 1990+growth in population agreed?

  6. anonymous
    • 5 years ago
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    ok

  7. anonymous
    • 5 years ago
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    okay so the annual rate of increase of population is 0.9%. so if population was 1000 in 1990, in 1991, the population would be 1000+0.009(1000)

  8. anonymous
    • 5 years ago
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    so it would be 1009 in 1991. in 1992, it would be 0.9% of the population of 1991, so population in 1992 = population in 1991+ 0.9% of population in 1991 = 1009+0.009(1009)

  9. anonymous
    • 5 years ago
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    and so on.

  10. anonymous
    • 5 years ago
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    so this is like compound interest, compounded yearly at rate 0.9%

  11. anonymous
    • 5 years ago
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    I hope you know what to do after this.

  12. anonymous
    • 5 years ago
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    not a damn clue i was in the hospital fo almost 2 weeks followed bty another 4 weeks of rehab so i missed all of this in school

  13. anonymous
    • 5 years ago
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    okay. population after t years = initial population(1+0.009)^t

  14. anonymous
    • 5 years ago
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    use that formula and you will get your answer,

  15. anonymous
    • 5 years ago
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    thanks

  16. anonymous
    • 5 years ago
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    np

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