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algebra

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What percent of 320 is 220 my answer is 6.88 make as a decimal.is this right.
-12(<)15 is less right.
-7-(-4)=-3 this subtract answer.
-9.8+(-4.9)=13.7
is these problem right.

  • algebra -

    my problem have not been answer what the problem

  • algebra -

    220/320 = .6875 = 68.75%
    (I don't know how you got 6.88)

    -12 < 15 ---true
    -7-(-4)
    = -7 + 4
    = -3 so you are right

    -9.8 + (-4.9) = -14.7

    2 negatives when added are still negative, think of going into debt twice, you are still in debt.

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