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algebra

posted by .

solve the equations
21E-7=0

I came up with 0.33
am I right or wrong

  • algebra - ,

    easy way to tell, just sub it in

    Left Side= 21E-7
    = 21(.33) - 7
    = .07
    ≠ 0

    so , no, you are wrong

    21E - 7 = 0
    21E = 7
    E = 7/21 = 1/3 as the accurate answer.

    1/3 = .3333.... , not .33

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