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February 27, 2015

February 27, 2015

Posted by **fred** on Friday, March 13, 2009 at 6:07pm.

- math -
**Ms. Sue**, Friday, March 13, 2009 at 6:09pmCross multiply this ratio and solve for x.

5/6 = 30/x

- math -
**fred**, Friday, March 13, 2009 at 6:13pmMs Sue I'm still stuck

- math -
**bob**, Friday, March 13, 2009 at 6:20pm5/6=30/x

You can see that 5 was multiplied by 6 to get 30. In order to keep the fraction the same, you'll also have to multiply the 6 in the denominator by 6 to get 36 as your value for x, which in this case represents the height of the tree in feet.

- math -
**Ms. Sue**, Friday, March 13, 2009 at 6:27pmWhen you cross multiply, you multiply the two farthest terms for the numerator and the two closest terms for the denominator.

5/6 = 30/x

5x = 6 * 30

5x = 180

x = ?

- math -
**fred**, Friday, March 13, 2009 at 6:31pmX=36

- math -
**Ms. Sue**, Friday, March 13, 2009 at 6:38pmRight. The tree is 36 feet tall.

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