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ira [324]
3 years ago
15

The pier is 200 meters long. each board is 80 centimeters wide. how many boards are in the pier?

Mathematics
1 answer:
Artemon [7]3 years ago
6 0
100 cm = 1 meter
80 cm = 0.8 meter
200 meters/.8 meters = number of boards
250
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Step-by-step explanation:

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we have

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Find the distance PQ

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substitute in the formula

d=\sqrt{(-2-3)^{2}+(-2-2)^{2}}

d=\sqrt{(-5)^{2}+(-4)^{2}}

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step 3

Find the distance RS

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substitute in the formula

d=\sqrt{(3+2)^{2}+(-2+2)^{2}}

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Find the distance PS

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substitute in the formula

d=\sqrt{(3-4)^{2}+(-2-2)^{2}}

d=\sqrt{(-1)^{2}+(-4)^{2}}

dPS=\sqrt{17}\ units

step 5

Find the perimeter

P=PQ+QR+RS+PS

substitute the values

P=1+\sqrt{41}+5+\sqrt{17}

P=6+\sqrt{41}+\sqrt{17}

P=16.53\ units

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