El3airadaalexanasal El3airadaalexanasal

25-09-2016
Mathematics

contestada

what is the value of r? 1.2r−1 1.3r=40

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misswild misswild

25-09-2016

the value is
1.2r-11.3r=40

-10.Ir=40
r=40/-10.1
r=-0.2525

hope this helps :):):)

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