Ask Question
7 July, 12:53

Cory's average score after 8 tests is 91%. If he gets a 78% on his 9th test what will his new average be?

+4
Answers (1)
  1. 7 July, 13:04
    0
    add all the scores together and the divided by the number of scores there are

    8 tests will be 8x91 = 728

    Then add on his latest test result 728+78 = 806

    Now divide by the number of tests (9) 806/9 = 89.55555555

    89.555%
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Cory's average score after 8 tests is 91%. If he gets a 78% on his 9th test what will his new average be? ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers