All categories

4 years ago

Solve for x 4x−13=2x+9

Mathematics

1 answer:

Sonbull [250]4 years ago

3 0

4x - 13 = 2x + 9

Add 13 to each side

4x = 2x + 22

Subtract 2x from both sides

2x = 22

Divide both sides by 2

x = 11

You might be interested in

The slope of the line below is 0.8. Write the equation of the line in point-slope

AlexFokin [52]

The equation of the line is y = 0.8x - 1.4 if the slope of the line is 0.8 and line passes through coordinates (-2,-3)

<h3>What is a straight line?</h3>

A straight line is a combination of endless points joined on both sides of the point.

The slope 'm' of any straight line is given by:

$\rm m =\dfrac{y_2-y_1}{x_2-x_1}$

The slope m = 0.8

The line passing through coordinates (-2,-3)

y = mx + c

y = 0.8x + c

Plug the point in the equation.

-3 = 0.8(-2) + c

c = -1.4

y = 0.8x - 1.4

Thus, the equation of the line is y = 0.8x - 1.4 if the slope of the line is 0.8 and line passes through coordinates (-2,-3)

Learn more about the straight line here:

brainly.com/question/3493733

#SPJ1

4 0

2 years ago

Solve the Compound Interest Formula for time given:<br> 250,000 = 12,000e^.125t

quester [9]

250000
=
13597.781437
t
Let's solve your equation step-by-step.
250000
=
13597.781437
t
Step 1: Flip the equation.
13597.781437
t
=
250000
Step 2: Divide both sides by 13597.781437.
13597.781437
t
13597.781437
=
250000
13597.781437
t
=
18.385352
Answer:
t
=
18.385352

5 0

3 years ago

kerry and four friends want to the movies they purchased sodas costing $5.50 each and hotdog each cosing $12.75 they each contri

grandymaker [24]

Answer:

they will each receive $1.75

Step-by-step explanation:

5.50*5= 27.50

12.75*5= 63.75

27.50+63.75= 91.25

20*5= 100

100-91.25=8.75

8.75/5= $1.75

hope this helps

4 0

3 years ago

The volume of a sphere is 2254 pi m^3 what is the surface area of the sphere to the nearest 10th

Advocard [28]

By definition. The volume of the sphere is:
V = (4/3) * (pi) * (r ^ 3)
Where,
r: radius of the sphere.
Substituting values:
2254 pi = (4/3) * (pi) * (r ^ 3)
Clearing the radio we have:
r ^ 3 = (3/4) * (2254)
r = ((3/4) * (2254)) ^ (1/3)
r = 11.91255883
Then, the surface area is:
A = 2 * pi * r ^ 2
Substituting values:
A = 2 * 3.14 * (11.91255883) ^ 2
A = 891.6 m ^ 2
Answer:
The surface area of the sphere is:
b. 891.6 m ^ 2

8 0

3 years ago

Nikola thinks that the model that reflects the growth of smartphones shipped from manufacturers to stores around the world may b

coldgirl [10]

Answer:

When most people have a smartphone, that is, the variable starts getting closer to its capacity, the demand will start to have a slight decrease, until it stabilizes, so yes, Nikola is correct.

Step-by-step explanation:

Exponential model:

The variable keeps growing consistently, at a fixed rate.

Logistic model:

The variable starts growing, but as it approaches a limit, for example, the carry capacity of an environment, the growth rate starts to decrease, until the variable stabilizes at a fixed value.

Growth of smartphones shipped from manufacturers to stores around the world.

When most people have a smartphone, that is, the variable starts getting closer to its capacity, the demand will start to have a slight decrease, until it stabilizes, so yes, Nikola is correct.

7 0

3 years ago