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primary 6 | Maths
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Anna Chye
Anna Chye

primary 6 chevron_right Maths

Please help.

Thanks thanks

Date Posted: 6 years ago
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Max
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Hope this helps!
Anna Chye
Anna Chye
6 years ago
Hiyee
Why do we need to multiply by 9?
Cheers
Max
Max
6 years ago
Hi Anna,

Eventually the ratio of number of 50¢ coins to the number of 20¢ coins is 1:9, as given in the question. To make the expressions equal, the algebraic expression of the number of 50¢ coins needs to multiplied by 9.

Does this help? Cheers!