tiny5
tiny5
31-08-2015
Mathematics
contestada
3r/4= 1/8 what's the value of r
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JaySL
JaySL
31-08-2015
Multiplying both sides by 8, we see that 6r=1. Dividing by 6, r=1/6.
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TSO
TSO
31-08-2015
[tex] \frac{3r}{4} =\frac{1}{8}[/tex]
Cross multiply.
Note: [tex]\sf\frac{a}{b} = \frac{c}{d} \to ad=bc[/tex]
Cross multiplying we get:
[tex]3r(8) = 4(1) \\ 24r = 4\\r = \frac{4}{24} \\\\r=\frac{1}{6}[/tex]
I hope that helps :)
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