Nicholas Ong's answer to Salleh's Secondary 2 Maths Singapore question.

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Nicholas Ong
Nicholas Ong's answer
90 answers (Tutor Details)
1st
hope this makes sense. since phelps took longer than joesph to finish the race, we take part b - part a = difference.
Nicholas Ong
Nicholas Ong
1 year ago
I'd leave part d to you! just find the x value (rejecting the negative x) and sub into part a