Respuesta :

cbarroso20
12.4b= 1117.8
1) divide both sides by 12.4
12.4b/12.4= 117.8/12.4
2) b= 9.5

Check
12.4(b)= 117.8
12.4(9.5) = 117.8
117.8= 117.8
margygavr
Divide 117.8 by 4b, and you get b=29.45