jimenezruben762
jimenezruben762
22-12-2014
Mathematics
contestada
7b÷12=4.2 what does b equal
Respuesta :
AL2006
AL2006
22-12-2014
" 7b ÷ 12 " can be written as " 7b / 12 ". That makes the problem easier,
because we know a lot of things that we can do with fractions.
7b / 12 = 4.2
Multiply each side of the equation by 12:
7b =
(4.2 x 12) =
50.4
Divide each side of the equation by 7 :
b =
50.4 / 7 =
7.2
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