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Question

Question
laura nosotros 12(1)/(2) pies cuadrados de tela para hacer 3 vestidos. ¿Cuántos pies cuadrados de tela se necesitan para hacer 12 vestidos del mismo tipo? A. 150 pies cuadrados B. 50 pies cuadrados C. 4(1)/(6) pies cuadrados D. 3(1)/(8) pies cuadrados

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Answer

B

Explanation

This is a problem of direct variation or direct proportion. In this case, the amount of fabric needed to make a dress is directly proportional to the number of dresses. If 12.5 square feet of fabric are needed to make 3 dresses, then we can set up a proportion to find out how much fabric is needed to make 12 dresses. The proportion is 12.5/3 = x/12, where x is the amount of fabric needed to make 12 dresses. Solving for x gives us x = 12.5 * 12 / 3 = 50 square feet. Therefore, 50 square feet of fabric are needed to make 12 dresses.