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SVEN [57.7K]
3 years ago
6

2 is added to twice a certain number and the sum is doubled .the result is 10 less than 5 times the original number​

Mathematics
2 answers:
Rom4ik [11]3 years ago
8 0

<u>Answer: </u>

2 is added to twice a certain number and the sum is doubled. The original number is 14

<u>Solution:</u>

Let x be the original number

Given that the 2 is added to twice of x. This can be represented as (2 + 2x)

Now it is given that the sum is doubled which means 2(2 + 2x)

The result is 10 less than 5 times the original number "x" which means 2(2 + 2x) = 5x - 10

The above expression is solved to get the value of original number

2(2 + 2x) = 5x - 10

4 + 4x = 5x - 10

On rewriting the above expression, we get

5x - 10 -4 -4x = 0

x - 14 = 0

x = 14

Hence the original number is 14

julia-pushkina [17]3 years ago
3 0

Answer:

14

Step-by-step explanation:

2(2n + 2)= 5n - 10

4n + 4 = 5n - 10

n=14

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Step 1: Simplify both sides of the equation.

3x−9x+7−3=−8

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3 years ago
If you need $3,000 four years from now, how much would you need to deposit into an account that earns 5% interest, compounded an
Aleks04 [339]

Answer:

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A ratio of the number of boys to the number of girls in a choir is 5 to 4. There are 60 girls in the choir
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2 years ago
Polygon LMNOP was transformed to create polygon L'M'N'O'P'.2 pentagons have identical side lengths and angle measures. The point
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The Angle that would correspond to Angle N after the transformation is; Angle N'

<h3>How to Interpret Transformations?</h3>

A polygon is defined as a two-dimensional geometric figure that has a finite number of sides. The sides of a polygon are made of straight line segments connected to each other end to end. Thus, the line segments of a polygon are called sides or edges.

In the transformation of  LMNOP to create polygon L'M'N'O'P', we have that;

L corresponds to L'

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Thus, we can conclude that Angle N would correspond to Angle N'

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