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mrs_skeptik [129]
3 years ago
6

What is the Value of x in the equation 2.5x + 10 = x-0.5 ?

Mathematics
2 answers:
LiRa [457]3 years ago
8 0

Answer:

x = 7

Step-by-step explanation:

2.5x + 10 = x - 0.5

2.5x - x + 10 = - 0.5

1.5x + 10 = - 0.5

1.5x = - 10 - 0.5

1.5x = - 10.5

x = - 105/15

x = 7

marshall27 [118]3 years ago
7 0

Answer: 7

Step-by-step explanation:

2.5x+10=x-0.5\\2.5x-x+10=-0.5\\1.5x=-0.5-10\\1.5x=-10.5\\x=\frac{10.5}{1.5}\\ x=7

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What is square root 28 in simplified radical form
kakasveta [241]

Answer:

The answer to your question is 28 =  2\sqrt{7}

Step-by-step explanation:

Data

square \sqrt{28}

Process

1.- Find the prime factor of 28

                            28 2

                              14 2

                                7 7

                                  1

         28 = 2 x 2 x 7   or 28 = 2² x 7

2.- Write the prime factors inside the square root

                        \sqrt{2^{2}7}

3.- Express the square root as fractional powers

                         2²/² 7¹/²

4.- Simplify

                        2 7¹/²

5.- Express 7¹/² as square root

        result         2\sqrt{7}

   

4 0
3 years ago
What is the actual distance from the library to the grocery store?
gtnhenbr [62]

Answer:

3

Step-by-step explanation:

3 0
2 years ago
Which polynomial expression represents the area of the outer most square tile, shown below?
Andrew [12]

ANSWER

{x}^{2}  - 6x + 9

EXPLANATION

The outermost square tile has side length,

l = x - 3

The area of a square is given by;

Area= {l}^{2}

We substitite the given expression for the side length into the formula to obtain,

Area= {(x - 3)}^{2}

Area= {(x - 3)}(x - 3)

We expand using the distributive property to obtain;

Area=x {(x - 3)} - 3(x - 3)

This gives us:

Area= {x}^{2}  - 3x - 3x  + 9

Area= {x}^{2}  - 6x + 9

The last choice is correct.

7 0
3 years ago
Read 2 more answers
Rachael is 5 ft 6 in tall . She notices that her shadow is 4 ft long and the shadow of a nearby water tower is 100 ft long . Wha
Nimfa-mama [501]
5.5/4=x/100
4x=550
x=137.5

the water tower is 137 ft. 6 in. tall.
3 0
3 years ago
HELP!
aev [14]

As you can see, in the table of the first function, f(2) = 18, and in the table of the second function g(2) = 18. Then, for x = 2, f(x) = g(x). and x =2 is the solution of the equation.

Answer: x = 2.

6 0
3 years ago
Read 2 more answers
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