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Secondary 1 | Maths
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Natania
Natania

Secondary 1 chevron_right Maths

Need help with Qn10 pls...tks in advance!!

Date Posted: 2 years ago
Views: 264

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Pingxuan
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Alex Wee
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1 answers (Tutor Details)
Use X and Y to represent the number of $10 and $50 notes respectively. Form 2 equations using the information given. Since there are 4 more $50 notes, the first equation should be Y($50)=X($10)+4. Second equation will be ($50)(Y)+($10)(X)=$380, this is to get the total amount of money. Sub equation 1 into equation 2. Solve for X, to get number of $10 notes.
Pingxuan
Pingxuan
2 years ago
It is sec 1 math they dont know simultaneous equation
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The Annexe Project
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