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nata0808 [166]
2 years ago
12

on a blueprint, the height of a door is 0.4cm. the actual height of the door is 2m. What is the scale on the blueprint?

Mathematics
1 answer:
Roman55 [17]2 years ago
4 0

Step-by-step explanation:

2 m corresponds to 0.4 cm on a blueprint.

so,

2 m / 0.4 cm = 200 cm / 0.4 cm

our fun the point of view of the blueprint

0.4 cm / 200 cm

the scale on a map or blueprint is usually normed to one unit on the blueprint :

0.4/200 × f/f = 1/(200×f)

0.4 × f = 1

f = 1/0.4 = 2.5

so, our scale is

(0.4 × 2.5) / (200 × 2.5) = 1 / 500

that means 1 cm on the blueprint corresponds to 500 cm or 5 m in reality.

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3 years ago
53 - 21 + 62 + (25 ÷ 5)
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Answer:

48

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4 0
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Two urns each contain green balls and blue balls. Urn I contains 4 green balls and 6 blue balls, and Urn II contains 6 green bal
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Urn 1 = 4 green balls and 6 blue balls, a total of 10 balls
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remember that

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answer is 0.25^{\frac{2}{3}}

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