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Damm [24]
3 years ago
15

The Sydney Harbour Bridge is approximately 1200 metres long. A model of the bridge is built with a scale of 1:6000. What is the

length of the model?
Pick one:
5cm
20cm
200cm
720cm
Mathematics
2 answers:
GuDViN [60]3 years ago
8 0

Answer:

20cm

Step-by-step explanation:

«A scale of 1:6000» means the model is smaller than the bridge by a factor of 6000. We can also make up a proportion \dfrac{1}{6000}=\dfrac{x}{1200}, where the left side is the scale, <em>x</em> is the model length, 1200 is the bridge length (in meters). So, finding <em>x</em> or just dividing 1200 by 6000, we get 0.2 meters. Provided 1 m = 100 cm, 0.2 m is 0.2 × 100 = 20 cm.

Crazy boy [7]3 years ago
7 0

Answer:

<h2><u><em>20cm</em></u></h2>

Step-by-step explanation:

The Sydney Harbour Bridge is approximately 1200 metres long. A model of the bridge is built with a scale of 1:6000. What is the length of the model?

Pick one:

5cm

20cm

200cm

720cm

--------------------

scale = 1:6000

so

1200 : 6000 =  0.2m

0.2m = 20 cm

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