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Flura [38]
3 years ago
14

The difference between a hundred and a number is four times that number.

Mathematics
1 answer:
kotykmax [81]3 years ago
7 0

Answer:

Step-by-step explanation:

Let the number be x

Four time that number = 4x

The difference between a hundred and a number  = 100 -x

100- x = 4x

100 = x + 4x

100 = 5x

5x = 100

x = 100/5 = 20

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The answer is D. 180 divided by x. .


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A man standing on level ground is 1000 feet away from the base of a 350-foot-tall building. Find,
CaHeK987 [17]

If you sketch the man and the building on paper, you'll have a
right triangle.  The right angle is the point where the wall of
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is one leg of the triangle, the line on the ground from the
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We need to find the angle at his feet, between the hypotenuse
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Well, the side opposite the angle is the height of the building -- 350ft,
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The tangent of the angle is      (opposite) / (adjacent)

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To find the angle, use a book, a slide rule, a Curta, or a calculator
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3 0
3 years ago
Silas just bought a used car for $5000. It loses value at a rate of 30% per year. The value of the car in n years is modeled by
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8 0
2 years ago
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