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Mathematics 9 Online
OpenStudy (anonymous):

during a highly rated one-hour television program, the entertainment portion lasted 15 min longer than 4 times the advertisement portion. 1.) If a represents the time spent on advertising, write an expression for the advertising portion. 2.) Use ur equation and the guess-and-check strategyto determine the number of min spent on advertising. Choose different values of a and equivalent to find the solution.

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