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oee [108]
2 years ago
5

The solution of 3x+5=x+9 is ____​

Mathematics
2 answers:
goldenfox [79]2 years ago
6 0

Answer:

x=2

Step-by-step explanation:

<em>•</em><em>Original</em><em> </em><em>Expression</em><em>;</em>

<em>3</em><em>x</em><em>+</em><em>5</em><em>=</em><em>x</em><em>+</em><em>9</em>

<em>•</em><em>G</em><em>r</em><em>o</em><em>u</em><em>p</em><em> </em><em>like </em><em>terms</em><em>;</em>

<em>3</em><em>x</em><em>-</em><em>x</em><em>=</em><em>9</em><em>-</em><em>5</em>

<em>•</em><em>S</em><em>i</em><em>m</em><em>p</em><em>l</em><em>i</em><em>f</em><em>y</em>

<em>3</em><em>x</em><em>-</em><em>x</em>

<em>=</em><em>2</em><em>x</em>

<em>Then</em><em> </em>

<em>9</em><em>-</em><em>5</em>

<em>=</em><em>4</em>

<em>Which</em><em> </em><em>is </em><em>going</em><em> </em><em>to</em><em> </em><em>be</em><em>;</em>

<em>2</em><em>x</em><em>=</em><em>4</em>

<em>•</em><em>D</em><em>i</em><em>v</em><em>i</em><em>d</em><em>e</em><em> </em><em>both</em><em> </em><em>sides</em><em> </em><em>by</em><em> </em><em>2</em><em> </em><em>to</em><em> </em><em>find</em><em> </em><em>x</em>

<em>4</em><em> </em><em>can</em><em> </em><em>be</em><em> </em><em>divided</em><em> </em><em>by</em><em> </em><em>2</em><em> </em><em>two</em><em> </em><em>times</em><em> </em><em>so</em><em>;</em>

<em>x</em><em>=</em><em>2</em><em> </em>

vampirchik [111]2 years ago
4 0

Answer:

x=2

Step-by-step explanation:

move x to the 3x side and move 5 to 9 side.

you get 2x=4

then you divide 2 from both sides and get 2

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When someone donated 14 gallons of paint to Rosendale Elementary School, the fifth grade decided to use it to paint murals. They
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Answer:

Answered

Step-by-step explanation:

Total amount of paint = 14 gallons

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a. therefore each class would get \frac{14}{4} gallons of paint

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b.Three classes will use 3× paint of each class

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c. 4 student paint 30 square-foot wall the each student would paint

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6 0
3 years ago
A principal of $2000 is invested at 7.75% interest, compounded annually. How much will the investment be worth after 14 years?
krek1111 [17]

Answer:

Yearly compounding: 7.75% $5,686.85

Quarterly compounding: 7.978% $5,857.78

Monthly compounding: 8.031% $5,898.27

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Step-by-step explanation:

multiply yearly by 14

7 0
2 years ago
This circle is circumscribed about quadrilateral ABCD. What is the value of x?
worty [1.4K]

Answer:

The value of x is 56°

Step-by-step explanation:

Given that opposite angles in a cyclic quadrilateral is add up to 180°. So in order to find x, you have to write an expression in terms of x :

97  + x + 27 = 180

x + 124 = 180

Next you have to solve it by substracting 124 to both sides :

x + 124 - 124 = 180 - 124

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6 0
2 years ago
Angie and Kenny play online video games. Angie buys 1 software package and 2 months of game play. Kenny buys 1 software package
GalinKa [24]

Answer:

The cost of one month of game​ play is $12.    

Step-by-step explanation:

We are given the following in the question:

Cost of software package = $30

Let y dollars be the cost of one month of game play.

Angie buys 1 software package and 2 months of game play.

Angie's cost =

1(30) + 2y = 2y + 30

Kenny buys 1 software package and 4 months of game play.

Kenny's cost =

1(30) + 4y = 4y + 30

Total cost = $132​

Thus, we can write the equation:

(2y+30)+(4y+30) = 132\\6y + 60 = 132\\6y = 132-60\\6y = 72\\\Rightarrow y = 12

Thus, the cost of one month of game​ play is $12.

7 0
2 years ago
The figure below shows a quadrilateral ABCD. Sides AB and DC are congruent and parallel: A quadrilateral ABCD is shown with the
algol [13]

A Quadrilateral A B C D in which Sides AB and DC are congruent and parallel.

The student has written the following explanation

Side AB is parallel to side DC so the alternate interior angles, angle ABD and angle BDC, are congruent. Side AB is equal to side DC and DB is the side common to triangles ABD and BCD. Therefore, the triangles ABD and CDB are congruent by SAS.

The student has also written

angles DBC and ADB are congruent and sides AD and BC are congruent. Angle DBC and angle ADB form a pair of alternate interior angles. Therefore, AD is congruent and parallel to BC. Quadrilateral ABCD is a parallelogram because its opposite sides are equal and parallel.

Postulate SAS completely describes the student's proof.

Because if in a quadrilateral one pair of opposite sides are equal and parallel then it is a parallelogram.

 

6 0
2 years ago
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