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Math Help - please help i thought i had this one all figured out but i was wrong

  1. #1
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    please help i thought i had this one all figured out but i was wrong

    ok here is my question that i am trying to solve, ive tried solving it but my answer is always wrong so if anyone has any idea what it is please share and thank you so much.

    A baseball team plays in a stadium that holds 60,000 spectators. With the ticket price at $10, the average attendance at recent games has been 30,000. A market survey indicates that for every dollar the ticket price is lowered, attendance increases by 2000.(a) Find a function that models the revenue in terms of ticket price. (Let x be the ticket price and R(x) be the revenue.)
    R(x) =
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  2. #2
    Senior Member sakonpure6's Avatar
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    Re: please help i thought i had this one all figured out but i was wrong

    a) f(x)= (30,000+2000x)(10-x)
    I believe this is it.
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    Re: please help i thought i had this one all figured out but i was wrong

    If you don't explain HOW you got the answer or, at least, tell why you "believe this is right", there really isn't much point in just giving a result.

    jenlee, let "P" be the cost of a ticket. Then 10- x is the number of dollars the price has decreased from $10 (or increases if x is negative). if "With the ticket price at $10, the average attendance at recent games has been 30,000. A market survey indicates that for every dollar the ticket price is lowered, attendance increases by 2000", then the attendance is 3000+ 2000(10- x). Since each of those pays 10- x dollars for a ticket, the revenue is R(x)= [30000+ 2000(10- x)]x. You may want to multiply that out to give it in its simplest form.
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    Re: please help i thought i had this one all figured out but i was wrong

    ok thank you both for your help but when i did the problem and i completed it by multiplying it out i got -50,000x^2+2,000x and the answer key says i am still wrong. i also tried it with 50,000x^2 +2,000x and this is also wrong any ideas what i did wrong now thanks


    HI EVERYBODY THANKS SO MUCH FOR YOUR HELP JUST FIGURED OUT WHAT WAS WRONG WASN'T USING MY COMMA IN THE NUMBERS
    AGAIN YOU ALL ROCK
    Last edited by jenlee; February 12th 2013 at 03:01 PM. Reason: I GOT THE RIGHT ANSWER
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