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06-12-2016
Mathematics

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80% of Vanessa's final grade is based on the average score of her quizzes, which is 73.

20% of her grade is based on the score of her final. What is the lowest grade she can get to scrape a passing 70 in the class?

PLEASE ANSWER QUICKLY!!!

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mathstudent55 mathstudent55

06-12-2016

80% of quizzes + 20% of final = final grade

80% * 73 + 20% * x = 70

0.8 * 73 + 0.2x = 70

58.4 + 0.2x = 70

0.2x = 11.6

x = 58

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