SOLUTION: a 42 inch long guitar is 10.5 feet long on a stadium screen. a drum is 21 inches wide. how wide is the image on the stadium screen.

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Question 398432: a 42 inch long guitar is 10.5 feet long on a stadium screen. a drum is 21 inches wide. how wide is the image on the stadium screen.

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

Let x represent how wide is the image of the drum is on the stadium screen

Question Sets Up the Proportion

 %2842%2F10.5%29+=+%2821%2Fx%29  |cross multiplying to solve for x

 42x = 21*10.5

   x = 21*10.5/42

   x = 5.25 ft, the width of the drum on the stadium screen