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sveta [45]
3 years ago
6

30 is 20% of what number?​

Mathematics
1 answer:
Nataly [62]3 years ago
6 0
30 is 20% of 150. Hope this pic helps

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Area of a circle = pi*r^2.

Here, A = 380.13 mi.  Unfortunately, "mi" is NOT a unit of area.

So I will assume that the problem should read   A = 380.13 sq. miles.
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3 years ago
Which of the set of ordered pairs contains the line<br> 1/3 x+y= 15.
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Answer:

<em>The actual width of the hair is 20 / 150 = 0.13 mm</em>

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<u>Scaling</u>

Objects can be represented in a reduced or augmented size by using scaling which is basically multiplying or dividing by a constant factor. We use scaling in several applications of real-life.

The human hair is magnified 150 times by a micro-phtograph. This is the scale factor.

The hair can be seen 2 cm wide in the photograph.

Converting to millimeters, 2 cm = 2*10 = 20 millimeters.

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6 0
2 years ago
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