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math

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would you please check these for me thank you.
+6+-5--4= 5
also Sara only has dimes and nichels in her coin jar,they are ina ratio of 3 to 5.If she has 120 coins in the jar,how many are dimes? 45 correct??

  • math -

    addition of integers is correct

    2nd, yes.

    Notice that 45 : 75 = 3 : 5

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