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primary 5 | Maths | Fractions
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Xu Tian Ai
Xu Tian Ai

primary 5 chevron_right Maths chevron_right Fractions chevron_right Singapore

please help me for this qustion 5. Thx

Date Posted: 4 years ago
Views: 218
snell
Snell
4 years ago
T: 1u
C+D: 3u
total: 4u


T + 24 = D
D - T = 24


T + 24 = D
1u + 24 = D
D = 1u + 24


C+D - T = 3u - 1u = 2u
C + 24 = 2u
C = 2u - 24


T+D = 1u + 1u + 24 = 2u + 24


2 . (2u + 24) = 5 . (2u - 24)
4u + 48 = 10u - 120
1u = 28


total cost $112

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Fion Ho
Fion Ho's answer
96 answers (A Helpful Person)
1st
Xu Tian Ai
Xu Tian Ai
4 years ago
thx for helping me. have a nive day!
Xu Tian Ai
Xu Tian Ai
3 years ago
thank very much for the answer and explanion.