SOLUTION: A public relations {{{highlight(cross(exert))}}} <U>expert</U> developed the model P(x)=0.5x+15 to predict a political candidate's performance in a certain upcoming election based

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Question 1195188: A public relations highlight%28cross%28exert%29%29 expert developed the model P(x)=0.5x+15 to predict a political candidate's performance in a certain upcoming election based on the amount the candidate spent on advertising in the model, P(x) is the percentage of votes, and x is the number of dollars, in thousands, spent on advertising. For example, if a candidate spends $0 on advertising, the model predicts that the candidate will receive 15% of the votes. Based on the model if a candidate receives 40% of the votes in the election, how much did the candidate spend on advertising?
Answer by ikleyn(52809) About Me  (Show Source):
You can put this solution on YOUR website!
.

Write equation as you read the problem

    40 = 0.5x + 15.


From the equation, find x

    40 - 15 = 0.5x

      25    = 0.5x

       x    = 25/0.5 = 50.


ANSWER.  50 thousand dollars.

Solved.