All categories

3 years ago

Solve One-Step EquationsSolve the equation.x/2= 5 for x

Mathematics

2 answers:

kondaur [170]3 years ago

5 0

Answer:x=10

Step-by-step explanation:

multiply both sides by 2, to get x=10

masha68 [24]3 years ago

4 0

Answer:

x = 10

Step-by-step explanation:

x/2 = 5

x = 5 / 1/2

x = 5 * 2

x = 10

10/2 = 5

You might be interested in

Find a positive number for which the sum of it and its reciprocal is the smallest (least) possible. Let x be the number and let

Allisa [31]

Answer:

$S(x) = x + \frac{1}{x}$ --- Objective function

Interval = $\{x:x=1\}$

Step-by-step explanation:

Given

Represent the number with x

The required sum can be represented as:

$x + \frac{1}{x}$

Hence, the objective function is:

$S(x) = x + \frac{1}{x}$

To get the the interval, we start by differentiating w.r.t x

Using first principle, this gives:

$S'(x) = 1 - \frac{1}{x^2}$

Equate S'(x) to 0 in order to solve for x

$0 = 1 - \frac{1}{x^2}$

Subtract 1 from both sides

$0 -1 = 1 -1 - \frac{1}{x^2}$

$-1 = - \frac{1}{x^2}$

Multiply both sides by -1

$1 = \frac{1}{x^2}$

Cross Multiply

$x^2 * 1 = 1$

$x^2 = 1$

Take positive square root of both sides because x is positive

$\sqrt{x^2} = \sqrt{1$

$x = 1$

Representing x using interval notation, we have

Interval = $\{x:x=1\}$

To get the smallest sum, we substitute 1 for x in $S(x) = x + \frac{1}{x}$

$S(1) = 1 + \frac{1}{1}$

$S(1) = 1 + 1$

$S(1) = 2$

Hence, the smallest sum is 2

3 0

3 years ago

Math help max points all questions also brainess plz dont just take them i really need help

Aleks [24]

Answer:

Step-by-step explanation:

7 0

3 years ago

It takes a day to build 2/3 of a model airplane gow many model airplanes can be built in 6 days

Sedaia [141]

Answer:

4 airplanes

Step-by-step explanation:

1 = 2/3

6 = x

cross multiply

x = 6 × 2/3

therefore x = 4

5 0

2 years ago

Read 2 more answers

PLEASE HELP!!! GEOMETRY QUESTION

maria [59]

Answer:

Step-by-step explanation:

2y + 100 +6x-10=180(in a cyclic quadrilateral opposite angles are supplementary)

2y+6x+90 =180

2y + 6x = 90

dividing each side by 2

y+3x = 45 ........1

7x+1+2y+74 =180 ( same reason)

7x + 2y =105 ............2

multiplying 1 by 2

2y +6x =90........ 3

subtracting 3 from 2

7x+2y-2y-6x = 105-90

x = 15

substituting x=15 in 1

y+45 =45

y= 0

please mark me as the brainliest

7 0

2 years ago

0.75 recurring as a fraction with 7 and 5 recurring

mariarad [96]

   100x = 75.757575...
- x =   0.757575...
-----------------------------
   99x = 75

x = 75/99

x = 25/33

Answer: 0.757575... = 25/33

6 0

3 years ago

Solve One-Step EquationsSolve the equation.x/2= 5 for x​

Solve One-Step EquationsSolve the equation.x/2= 5 for x