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secondary 3 E Maths Singapore

I forgot how to do XD

Date Posted: 3 years ago

Snell

3 years ago

nos.
x + y = 40

cost
x + 1.4y = 50

40 - y + 1.4y = 50
0.4y = 10
y = 25

x = 15

max 25 c. wings

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Date Posted: 3 years ago