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primary 5 | Maths | Whole Numbers
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Lim jia an
Lim Jia An

primary 5 chevron_right Maths chevron_right Whole Numbers chevron_right Singapore

I need the correct answer pls

Date Posted: 1 year ago
Views: 319

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Low Yi Yin
Low Yi Yin's answer
251 answers (Tutor Details)
1st
Method: Algebraic Substitution
1) Find relationships between the two unknowns (no. of adult of tickets and concession tickets)
2) Make one of those equations simple such that only have one at one side ( x= 20-y) and sub into the other eqn
3) Find the single unknown
4) Sub into eqn 2 to get the second unknown