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09-12-2016
Mathematics

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if r = 300+y and b= 2×r, what is y

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Tsukiyume Tsukiyume

09-12-2016

r = 300+y , b= 2*r

b=2(300+y)
b= 600 +2y

2y = b - 600
y = b/2 - 300

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