All categories

3 years ago

X - 7 = 13 - x help asap plz

Mathematics

1 answer:

bekas [8.4K]3 years ago

4 0

Answer:

x = 10

Step-by-step explanation:

$x - 7 = 13 - x$

Step 1 : Collect like terms and simplify

$x + x = 13 + 7 \\ 2x = 20$

Step 2 : Divide both sides of the equation by 2

$\frac{2x}{2} = \frac{20}{2}$

Step 3 : Simplify by cross cancellation of common term : 2

$x = 10$

You might be interested in

Write an equation of the line with the given slope and y-intercept. slope: -7 y-intercept: 2

madreJ [45]

Answer:

y= -7x+2

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

A hotel house keeper cleaned 1/3 on

Aleksandr-060686 [28]

Answer:

dunno

Step-by-step explanation:

hope this helps has hdhd

3 0

3 years ago

Which choice names a diameter of circle f

nadezda [96]

It would be c because fe is a radius ba is a chord and ec isnt a line

5 0

3 years ago

Passes through 5,4 slope -3 ASAP

aksik [14]

The answer should be
Y=-3x+19

5 0

3 years ago

The side length of a square ice cube is claimed to be 1.0 inches, correct to within 0.001 inch. Use linear approximation to esti

Olenka [21]

Answer:

0.012

Step-by-step explanation:

Linear approximation says that,

$f(x) \approx f(x_o)+f'(x_o)(x-x_o)$

For a cube the surface area is $6x^2$ .

So the side is 1.0 inch in, the surface area is $=6\times1^2 = 6$ square inches.

In Linear approximation means you ignore the term $x_o^2$ , if $x_o$ is a small number, because then $x_o^2$ will be a very smalle number and that does not contribute much to the error.

So the surface area is approximately,

$6x^2=6x_o^2+12x_o(x-x_o)$

So here, $x=1.001, x_o=0.001$

The error in the area is approximately,

$12 \times 0.001=0.012$

So the error is 0.012.

3 0

3 years ago