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9 answers

12.5 meters

it is a ratio

1m (x)=.4m
x=.4/1
x=.4
tree(.4)=5m
tree=5m/.4
tree=12.5 m

2006-12-13 16:06:25 · answer #1 · answered by shadouse 6 · 0 0

Watch the movie "Twins" starring Danny Devito and Arnold Swatanigga...

Think Triangles ...
A squared + B squared = square root of C square

5 square + (0.4 x 5) square = square root (A square +B square)

Assuming both tree and meter stick measure are straight you can multiply the meter stick by 5 to match the height of the tree while allowing the correct answer to still be computed.

2006-12-14 00:18:00 · answer #2 · answered by Kenneth K 1 · 0 1

As the 0.4m shadow goes to one meter stick so the five meter shadow will go to X meters!

So: 0.4/1 = 5/X

and X = (5x1)/0.4 = 12.5 m

2006-12-14 00:13:09 · answer #3 · answered by Nikolas S 6 · 0 0

I imagine theres some kind of proportionate relationship between the 3 given measurements.

2006-12-14 00:06:34 · answer #4 · answered by Norman 7 · 0 0

0.4 /1 = 5/x , where x is the height of the tree

cross-multiply to get:

0.4x = 5

x = 5/0.4

x=12.5

Therefore the tree is 12.5 m.

2006-12-14 00:17:24 · answer #5 · answered by pink_sweater 4 · 0 0

Let ym be the tree's tall.
1/0.4=y/5
1/0.4x0.4=y/5x0.4
1=0.4y/5
1x5=0.4y/5x5
5=0.4y
5/0.4=0.4y/0.4
y=12.5

The tree is 12.5m.

2006-12-14 02:16:33 · answer #6 · answered by schoolgirl 1 · 0 0

1m=.4m
1m/.4m
2.5m

2.5m(5m)
12.5m=how tall the tree is

2006-12-14 00:10:53 · answer #7 · answered by mandie 4 · 0 0

1m/0.4m = x/5m
0.4x = 5
x = 12.5

2006-12-14 00:08:14 · answer #8 · answered by Rasta 6 · 0 0

Thats what she said.

2006-12-14 00:05:38 · answer #9 · answered by Jeffrizzel 1 · 0 1

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