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    sim0nz12345's Avatar
    sim0nz12345 Posts: 77, Reputation: 2
    Junior Member
    		  
    #1

    Sep 1, 2007, 08:07 PM
    Exponential and logs
    How would you solve this worded equation:

    A satellite city was established ten years ago. For the last eight years, the city's population, P, has been growing according to the rule

    P=klog10(n) (where 10 is the base of log)
    where "k" is a constant and "n" is the number of years since the city was established. The city's population is now 100000.

    a) Find the value of k.

    Thanks
    nicespringgirl's Avatar
    nicespringgirl Posts: 1,237, Reputation: 187
    Ultra Member
    		  
    #2

    Sep 1, 2007, 10:13 PM
    established ten years ago
    "
    n" is the number of years since the city was established
    so n=10

    Log1010=1

    =>P=K

    I think you can get the answer on your own now.
    sim0nz12345's Avatar
    sim0nz12345 Posts: 77, Reputation: 2
    Junior Member
    		  
    #3

    Sep 1, 2007, 10:35 PM
    Thanks
    I didn't pay much attention to the worded question
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