Eric Nicholas K's answer to Kathy's Secondary 4 E Maths Singapore question.
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We need to convert the word problem into an equation using the relation
Distance = Speed x Time
and the other two modified expressions of the same equation for speed and time.
Remember that the value of x which we extract at the end must make sense i.e. x must be positive since x represents the time taken for the journey (even x = 0 does not really make much sense here).
Distance = Speed x Time
and the other two modified expressions of the same equation for speed and time.
Remember that the value of x which we extract at the end must make sense i.e. x must be positive since x represents the time taken for the journey (even x = 0 does not really make much sense here).
Date Posted:
6 years ago
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