Homework Help: math

Posted by Lia on Sunday, May 16, 2010 at 7:51pm.

On a sunny day an office building casts a shadow that is 80 feet long. At the same time, a 5 foot person casts a 6 foot shadow. Determine the height of the office building to the nearest foot.

math - Ms. Sue, Sunday, May 16, 2010 at 7:58pm
Let's set up a proportion.

5/6 = x/80

Cross multiply:

6x = 400
x = 400/6
x = ?
math - ana, Wednesday, April 20, 2011 at 4:21pm
66.6

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