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Question
primary 6 | Maths
| Ratio
3 Answers Below
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Hi...please help to slove and explain. TIA
Date Posted: 4 years ago
Views: 309
at first
sweets
Chad: 2u
Dorothy: 2u
in the end
sweets
Chad: 2u-18 - u + 9 = u - 9
Dorothy: 2u + u - 9 = 3u - 9
15 x (u - 9) = 2 x (3u - 9)
u = 13
at first, each has 26 sweets
***
at first
cookies
Chad: 3u
Dorothy: 3u
in the end
cookies
Dorothy: 3u-28-u+28/3 = 2u - 56/3
Chad: 3u + u - 28/3 = 4u - 28/3
15 x (2u - 56/3) = 4 x (4u - 28/3)
u = 52/3
at first, each has 52 cookies
...
sweets
Chad: 2u
Dorothy: 2u
in the end
sweets
Chad: 2u-18 - u + 9 = u - 9
Dorothy: 2u + u - 9 = 3u - 9
15 x (u - 9) = 2 x (3u - 9)
u = 13
at first, each has 26 sweets
***
at first
cookies
Chad: 3u
Dorothy: 3u
in the end
cookies
Dorothy: 3u-28-u+28/3 = 2u - 56/3
Chad: 3u + u - 28/3 = 4u - 28/3
15 x (2u - 56/3) = 4 x (4u - 28/3)
u = 52/3
at first, each has 52 cookies
...
Thank you very much for your quick reply. The explanation is very detailed. Thanks for your help!
welcome
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Thank you for your help.
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