math

posted by Gail

Can you double check my answer for me.
The question is Corinne calculated the area of a paper plate to be 50.27 square inches. If the actual area of the plate is 55.42 square inches , what is the relative error in calculating the area, to the nearest thousandth.
I got 0.093
I did this by55.42-50.27=5.15
55.42/100=5.15/x
55.42x/55.42=515/55.42
x=9.292674%
sox=0.0929267
so I rounded it to 0.093
I wasn't sure whether to leave it at 0.092 or round it up, but since it said to round it to the thousandth I went with 0.093
Is this correct.
Thank you for taking the time to check my answer

  1. Kuai

    Yes it is correct.
    0.093

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