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A safety box has three layers of metal, each with a different width. If one layer is 1/8 inch thick, a second layer is 1/6 inch thick, and the total thickness is 3/4 inch thick, what is the width of the third layer?

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A safety box has three layers of metal, each with a different width. If one layer is 1/8 inch thick, a second layer is 1/6 inch thick, and the total thickness is 3/4 inch thick, what is the width of the third layer?





 
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