# ratio and percentages in algebra *help* URGENT

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#1
m:n = 3:8 and r is 20% of n. Work out m:r.
Last edited by kittymityyy; 1 month ago
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1 month ago
#2

Last edited by cflau_; 1 month ago
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#3
(Original post by cflau_)

but i don't understand where you get 5m from? is it 8-3? but what are you working out when subtracting these values?
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1 month ago
#4
(Original post by kittymityyy)
but i don't understand where you get 5m from? is it 8-3? but what are you working out when subtracting these values?
It’s to get rid of the decimal of *0.2n* you times it by 5 so it just becomes n and the top is 5m
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#5
(Original post by ApplePi55)
It’s to get rid of the decimal of *0.2n* you times it by 5 so it just becomes n and the top is 5m
thank you so much! life saver!
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