Let the score on her seventh test be "x".
SO,
∴ He must get 104% on his seventh test to get an average score of 90%
SO,
∴ He must get 104% on his seventh test to get an average score of 90%
Scientists believe that there is an extremely massive black hole at the center of the Milky Way. How many times more massive tha
1 answer:
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let's firstly, convert the mixed fraction to improper fraction, and then subtract.