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mathcalculus
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Help.. (1 pt) A rectangular page is to contain 180 square inches of print. The top and bottom margins are each 0.6 inches wide , and the margins on each side is 1.25 inches wide. What should the dimensions be if the least amount of material is to be used ?
(Leave your answers to 3 decimal places.)
Length of top(bottom) : inches
Length of side : inches
 10 months ago
 10 months ago
mathcalculus Group Title
Help.. (1 pt) A rectangular page is to contain 180 square inches of print. The top and bottom margins are each 0.6 inches wide , and the margins on each side is 1.25 inches wide. What should the dimensions be if the least amount of material is to be used ? (Leave your answers to 3 decimal places.) Length of top(bottom) : inches Length of side : inches
 10 months ago
 10 months ago

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ranga Group TitleBest ResponseYou've already chosen the best response.2
Assume the length of the paper is L and width W. Area = LW (the area of the material used). We want to minimize A. You can find the dimensions of the printable area of the paper: The length will decrease by the top and bottom margins: (L  .6  .6) = (L  1.2) The width will decrease by the left and right margins: (W  1.25  1.25) = (W  2.5) (L  1.2)((W  2.5) = 180. Solve for L in terms of W. Substitute in the area formula and minimize by finding derivative and equation to zero.
 10 months ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
will try this..
 10 months ago
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