A package of aluminum foil contains 50 squared feet of foil, which weighs approximately 8.0 ozAluminum has a density of 2.70 g/cm cubedWhat is the approximate thickness of the foil in millimeters? If any one can tell me how to go about it, i'd appreciate it very much :]
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First of all you'll need to convert your units to metric as the answer is asked for in mm: 50 sq ft 46 451.52 sq cm 8.0 oz 226.796185 g Then, if the density is 2.7 g/cm cubed this is equal to the weight divided by the volume: 2.7 226.796185 / volume volume 84.999 cm cubed Then volume length width thickness: 84.999 46 451.52 thickness thickness 0.0018 cm 0.018 mm
