Posted by **Winnie** on Wednesday, November 14, 2012 at 8:24pm.

the roots of a tree are 1/8 of the tree. they are 0.87 m. how tall is the tree?

my answer: 0.87 x 7 = 6.09 m

please check if my answer is right

thanks :)

- Math URGENT! -
**Ms. Sue**, Wednesday, November 14, 2012 at 8:29pm
Why did you multiply 0.87 by 7?

1/8x = 0.87

0.125x = 0.87

x = 0.87 / 0.125

x = 6.96 m

- Math URGENT! -
**Winnie**, Wednesday, November 14, 2012 at 8:32pm
I am not trying to fin out x. Its the multiplication sign: 0.87 multiplied by 7.

how did you get 0.125 in the question?

- Math URGENT! -
**Ms. Sue**, Wednesday, November 14, 2012 at 8:40pm
I changed 1/8 to its equivalent decimal, 0.125.

I used x for the height of the tree.

- Math URGENT! -
**Winnie**, Wednesday, November 14, 2012 at 8:45pm
1 divided by 8 = 0.125

0.125 divided by 0.87 = 6.96

k so the answer is 6.96 m

ps:

are u sure:)

- Math URGENT! -
**Ms. Sue**, Wednesday, November 14, 2012 at 8:47pm
Let's prove it. Is 1/8 of 6.96 = 0.87

0.125 * 6.96 = 0.87

Yep! It's right.

- Math URGENT! -
**Winnie**, Wednesday, November 14, 2012 at 8:49pm
thank you so much :)

- Math URGENT! -
**Ms. Sue**, Wednesday, November 14, 2012 at 9:04pm
You're very welcome.

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