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In a math contest, every correct answer is worth 3 points and every wrong answer is worth -2 points. If Ralph got 30 questions correctly and answered 10 items incorrectly what was his total points?

 May 28, 2020
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In a math contest, every correct answer is worth 3 points and every wrong answer is worth -2 points. If Ralph got 30 questions correctly and answered 10 items incorrectly what was his total points?  

 

correct answers .....    30 correct    @   3 pts per correct      =    90 points  

incorrect answers ...   10 incorrect  @ –2 pts per incorrect   =  –20 points  

                                                                                                 ————  

added together the total points received is                                  70 points  

.  

 May 28, 2020

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