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Question
primary 6 | Maths
| Algebra
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How to solve
Date Posted: 3 years ago
Views: 367
Lilian = 2u
Siti = 2u - k
Janet = 1u
Total = 165
5u - k = 165
5u = 165+k
u = 33 + k/5
2u = 66 + 2k/5
Siti = 66 + 2k/5 - k
Siti = 66 - 3k/5
If k=8
Siti = 66 - (3×8)÷5 = $61.20
Siti = 2u - k
Janet = 1u
Total = 165
5u - k = 165
5u = 165+k
u = 33 + k/5
2u = 66 + 2k/5
Siti = 66 + 2k/5 - k
Siti = 66 - 3k/5
If k=8
Siti = 66 - (3×8)÷5 = $61.20
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