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Svet_ta [14]
3 years ago
10

(25x)°=(22×+9)° whas the answer

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
3 0

Answer:

x = 3  

Step-by-step explanation:

(25x)° = (22x + 9)°     Divide each side by 1°

  25x = 22x + 9          Subtract 22x from each side

    3x = 9                       Divide each side by 3

      x = 3

<em>Check: </em>

(25× 3)° = (22×3 + 9)°

      75° = (66 + 9)°

      75° = 75°

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Answer:

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Step-by-step explanation:

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3 years ago
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The perimeter of a stop sign has a perimeter of 16x2 - 80x. What is the length of one side?
uranmaximum [27]
Since a stop sign is an octagon it has eight sides.  So the perimeter will be:

p=8x,  p=perimeter and x=side length.  We are told that the perimeter is equal to:

16x^2-80x so we can say:

16x^2-80x=8x subtract 8x from both sides

16x^2-88x=0  factor out 8x

8x(2x-11), since we know x>0

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3 years ago
The scale factor for a model is 5cm= m model: 9.5cm actual : 30.5m
MaRussiya [10]

We are given dimensions of model and actual figure.

model: 9.5cm actual : 30.5m.

We need to find the length of actual shape for the scale factor 5cm.

Let us assume actual length be x m.

Let us set a proportion now.

<h3>5 : x = 9.5 : 30.5</h3>

Let us convert proportion into fractions.

\frac{5}{x}=\frac{9.5}{30.5}

On cross multiplying, we get

9.5x = 5× 30.5

9.5x = 152.5.

On dividing both sides by 9.5, we get

\frac{9.5x}{9.5}=\frac{152.5}{9.5}

x=16.05.

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3 years ago
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The answer is B 40........



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3 years ago
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dusya [7]
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Step by step explanation:

Area of a circle formula pi*r^2

First solve the area of the big circle

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Now we can minus the small area off the big area to get the shaded area.

1384.74-961.63=423.11 m^2

So the area of the shaded region is 423.11 m^2
3 0
3 years ago
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