SOLUTION: A restaurant has a weekly ad in a local newspaper that is 2 inches wide and 4 inches high and cost $36.75 per week. The cost of each ad is based on its area. If the owner of the re

Algebra ->  Customizable Word Problem Solvers  -> Geometry -> SOLUTION: A restaurant has a weekly ad in a local newspaper that is 2 inches wide and 4 inches high and cost $36.75 per week. The cost of each ad is based on its area. If the owner of the re      Log On

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Question 958868: A restaurant has a weekly ad in a local newspaper that is 2 inches wide and 4 inches high and cost $36.75 per week. The cost of each ad is based on its area. If the owner of the restaurant decides to double the width and height of the ad, how much will the new ad cost?
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
A=area; L=length; W=width
A=LW
Double width: Multiply each side by 2
2A=L2W
Double length: Multiply each side by 2
4A=2L2W
Doubling length and with multiplies area (and thus cost) by 4:
4($36.75)=$147.00 ANSWER: The new ad will cost $147.00.