Chemistry

If tests are worth 90% & quizzes 10%. What is my average is my test average is a 83 & my quiz average is a 92?

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  1. Assistance needed

  2. http://www.wolframalpha.com/input/?i=%2883*9+%2B+92%29%2F10

  3. (0.9x 83)+(0.1 x 92) = ??

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