SOLUTION: In the math contest of 20 problems 5 pts. were given for each correct answer and 2 points were deducted for each incorrect answer If Phillip answered scored 72 points How many corr
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Question 762837: In the math contest of 20 problems 5 pts. were given for each correct answer and 2 points were deducted for each incorrect answer If Phillip answered scored 72 points How many correct answer did he get?
Thank you Answer by KMST(5328) (Show Source):
You can put this solution on YOUR website! = number of correct answers.
Then, = number of incorrect answers, and
So, if Phillips score was 72, for him,
That's the equation we have to solve. --> --> --> --> --> -->
