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25-03-2015
Mathematics

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The height of a wide screen television screen is directly proportional to its width. A manufacturer makes a television screen that its 60 centimeters wide and 33.75 centimeters high. Find the height of a television screen that is 90 centimeters wide.

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shindosaulong shindosaulong

25-03-2015

cross multiply and divide

60 wide/33.75high
90 wide/?high
90x33.75/60=
50.625

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