<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7Bx%7D%20%3D%20%5Cfrac%7B7%7D%7B5%7D%20" id="TexFormula1" title=" \frac{4}{x

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aliina [53]

3 years ago

} = \frac{7}{5} " alt=" \frac{4}{x} = \frac{7}{5} " align="absmiddle" class="latex-formula">

find x

Mathematics

2 answers:

Firlakuza [10]3 years ago

6 0

They have the correct answer

RUDIKE [14]3 years ago

5 0

Answer:

x = $\frac{20}{7}$

Step-by-step explanation:

Given

$\frac{4}{x}$ = $\frac{7}{5}$ ( cross- multiply )

7x = 20 ( divide both sides by 7 )

x = $\frac{20}{7}$

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Andrea made a replica of the Empire State Building. The surface area of the model is 45 ft2. What is the surface area of the act

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Answer:

87,120 ft²

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Surface area of the Empire State building replica = 45 square feet

Scale factor = 44

2. What is the surface area of the actual Empire State Building in square feet?

For answering the question, we will make the following calculations:

45 square feet = 9 feet * 5 feet or,

45 square feet = 10 feet * 4.5 feet, or,

45 square feet = 20 feet * 2.25 feet.

Now, let's apply the scale factor to all of these probable lengths of the sides of the surface area of the replica, as follows:

(9 *44) * (5 * 44) = 396 * 220 = 87,120 ft²

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As we proved, no matter what are the lengths of the sides of the surface area of the replica. after applying the scale factor, the result is the same: 87,120 ft²

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Answer:

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Part 2) see the explanation

Step-by-step explanation:

Part 1) How many possible locations are there for point B?

we know that

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Convert to slope intercept form

$y-9=\frac{3}{4}x-\frac{6}{4}$

$y=\frac{3}{4}x-\frac{6}{4}+9$

$y=\frac{3}{4}x+\frac{30}{4}$

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Point B can be any point ( different from point A) that satisfies the linear equation

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Part 2) Describes a method to location the point

To locate the point, one of the two coordinates must be known. The known coordinate is placed into the linear equation and the equation is solved to find the value of the missing coordinate

Example

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The coordinates of point B is (4,10.5)

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Step-by-step explanation:

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