SG
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Primary 6
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Number and Algebra
Can someone help me to solve this? Thanks
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2
Meng Khim Goh
A:D = 2:3
A:(B+C) = 1:2 = 2:4
Therefore, (B+C):D = 4:3
C:(B+D) = 1:3
To make the total units of B+C+D to be equal,
(B+C):D = 16:12
C:(B+D) = 7:21
Therefore, B:C:D = 9:7:12
Since A:(B+C) = 1:2 and (B+C)=16
A:B:C:D = 8:9:7:12 (ans)
4 years ago
Sherleen Ee
Thanks Goh Meng Khim for helping
4 years ago
Adrian Ng
Asked 7 years ago
SG
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Primary 6
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Number and Algebra
Making it visual...
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1
Lee Yuet Meng
Thanks, Adrian Ng!
4 years ago
Lee Yuet Meng
Asked 7 years ago
SG
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Primary 5
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Number and Algebra
Last one for the night.
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2
Lee Yuet Meng
Need help for this nails and screws question too! TIA!
4 years ago
BA Poh Ann
4 years ago
Jamie Lee
Asked 7 years ago
SG
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Primary 5
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Number and Algebra
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3
Amaline Yang
4 years ago
Lucie Ng
4 years ago
Chatawut Che
3 units (after J) = 1250+62+62=1374
1 unit = 1374รท3= 458
4 years ago
Jamie Lee
Asked 7 years ago
SG
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Primary 6
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Number and Algebra
Teachers, please help my sister for these two qns. forgive us if the pics are unclear.