billsbikerbaby
billsbikerbaby
09-12-2016
Mathematics
contestada
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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