RoseLea123
RoseLea123 RoseLea123
  • 17-12-2016
  • Mathematics
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Help needed, have no idea.

Help needed have no idea class=

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howudoing
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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