RoseLea123
RoseLea123
17-12-2016
Mathematics
contestada
Help needed, have no idea.
Respuesta :
howudoing
howudoing
17-12-2016
in 1st fig
A=5×x(let)
9=5×x
in 2nd fig
A=10×2x(5 is doubled so ×also doubled)
A=10×2×9÷5
A=36
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