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September 20, 2014

September 20, 2014

Posted by **Jenny** on Sunday, January 9, 2011 at 5:19pm.

- Math -
**Ms. Sue**, Sunday, January 9, 2011 at 5:21pmLet's use a proportion. Let x = the height of the flag pole.

6/10 = x/45

Cross multiply.

10x = 270

x = 27

- Math -
**K**, Sunday, January 9, 2011 at 5:28pmThis is a proportion problem. There are two ways to solve this.

The 1st way, my preferred one, is to take 6 and 10 as a ratio. 6:10 simplyfied is 3:5. So, 45 / 5 is equal to 9, so 3 * 9 = 27.

That may be a little confusing sometimes so there is a second way. Take 6/10. It is equal to x / 45. (X being the flagpole length). If you cross-multiply you get 10x = 6 * 45. Simplify and you get x = 270 / 10 or 27.

- Math -
**person**, Friday, January 13, 2012 at 9:21ami need help to one simular to this one. ok if the flag pole is 15 feet tall and 8 feet long and the boy is 5 feet tall. what proportion can be made to find the lenght of his shadow?

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