chap 6 Error Analysis Homework 2 Ex 6.2 Q5

Go through the working and attempt to identify where the error is.

2 comments:

  1. From line 3 onwards, he should be doing this instead:
    160 = (1/2)(64)(m)
    160 = 32m
    -32m = -160
    m = 5

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  2. At line 4, he cannot deduct 64. He has to divide instead, as the right hand side of the equation is concerning about multiplication, not addition or subtraction. Thus, it should have been:

    160÷64= (1/2)m

    ReplyDelete