document.write( "Question 152044: A rectangular light-switch plate is made according to the following dimensions. The length is 7 inches, and the width is 5.5 inches; a rectangular hole measuring 1.2 inches by 0.3 inches is left in the center. (See diagram below) (a) How many square inches in area is the light-switch plate (the shaded region)? (b) If the cost to construct the plate is $4.27 per square inch, what is the construction cost?
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Algebra.Com's Answer #111755 by vleith(2983)\"\" \"About 
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\"AreaOfRectangle+=+Length%2AWidth\"
\n" ); document.write( "The area of the light swtich is the area of the plate minus the area of the hole
\n" ); document.write( "\"Area+=+AreaPlate+-+AreaHole\"
\n" ); document.write( "\"Area+=+%287%2A5.5%29+-+%281.2%2A+0.3%29\"
\n" ); document.write( "\"Area+=+38.5+-+0.36\"
\n" ); document.write( "\"Area+=+38.14\" square inches\r
\n" ); document.write( "\n" ); document.write( "At 4.27 per square inch, the toal cost is \"Cost+=+4.27+%2A+38.14\"
\n" ); document.write( "\"Cost+=+162.86\" \r
\n" ); document.write( "\n" ); document.write( "That's one expensive light switch.
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