1 . 12+2x=16 2.12+x=26 3 . 4x-2=10

Answers

Answer 1

Answer:

1. x=4

2. x=14

3. x=3

Step-by-step explanation:

x is just a symbol they use as a temporary symbol to tell the person reading the problem that there is number that you do not know yet. if the x in the problem is next to a number then it needs to be multiplied with the number it's next to. in this case we know that 4 times 3=12 and if you take two away from 12 you get 10 so because 3 works in the equation it's the answer for 4x-2=10. this applies to every problem like this another way to solve it is if you add 2 to the left side it cancels out but you need to add 2 to the other side which would look like 4x=10+2 which equals 4x=12 and 4 times three equals 12. it doesn't matter how the equation changes as long as you find out whatx equals then that is the answer.

Answer 2

Answer:

1. x = 2

2. x = 14

3. x = 3

Step-by-step explanation:

1. 12 + 2x = 16

First, I did 16 - 12 which is 4. I did this because you want to know how much 2x is supposed to be fully, and you always want to do the opposite. like in this case it was addition so the opposite is subtracting. Next, the 2x is supposed to equal 4, and when you see 2x that means you have to multiply. So, 2 x 2 = 4. You can also do 4 divided by 2 equal 4. Finally, the answer for x is 2.

________________________________________________________

2. 12 + x = 26

So, you have to do 26 - 12 which is 14. I turned the addition problem to a subtraction problem because you always want to do the opposite. and you should already know that x will equal 14. you can double check if you want and change it back to addition which will be 12 + 14 = what ? 26 . so 14 is the answer for x !

________________________________________________________

3. 4x - 2 = 10

First, you want to do 10 + 2 which is 12. You should know by now if you read above for the other equations that you have to do the opposite. Next, 4x is going to have to be equal to 12. So, 4 x 3 = 12 or you can do 12 divided by 4 which will still equal 3. Finally the answer for x is 3.

________________________________________________________

Hope this helps !

here a fun quote

"Happiness is the secret to all beauty. There is no beauty without happiness." - Chirstian Dior


Related Questions

Using substitution, what is the solution for the system of equations below?

Answers

Hey there!

Substitute x = 2 to y = 3x - 1

=> y = 3(2) -1

=> y = 6 - 1

=> y = 5

x = 2,y = 5

Solve.
2 What is the volume of this rectangular prism?
Show your work.

Answers

Step-by-step explanation:

if width = 3 length = 5 hight = 10

Volume of rectangular prism = 3×5×10

= 150

Volume is the amount of 3-dimensional space an object occupies. Volume is measured in cubic units.

For example, the rectangular prism below has a volume of 18 cubic units because it is made up of 18 unit cubic

Finding volume of a rectangular prism

To find the volume of a rectangular prism, we multiply the length of the prism by the width of the prism by the height of the prism.
Volume of rectangular prism = length * width * height
Example

A rectangular prism made up of unit cubes. The front face of the rectangular prism shows 9 cubes: 3 rows and 3 columns. The top face of the cube shows 6 cubes: 2 rows and 3 columns. The right-hand side face shows 6 cubes: 3 rows and 2 columns. The length of the rectangular prism is 3 units. The width of the rectangular prism is 2 units. The height of the rectangular prism is 3 units.

Volume= length * width * height
=3*2*3
= 18 cubic unit

Another example
A rectangular prism with a length of 6 centimeters, a width of 5 centimeters, and a height of 7 centimeters.

Volume= length * width * height
=6*7*5
=210 cubic unit

HELP / 100 POINTS
This shape has _______ faces.
This shape has 5 vertices.
This shape has 8 edges.

Answers

Answer:

5 faces

Step-by-step explanation:

A traingular prism has 5 faces. The square on the bottom and the four traingles that make up the sides.

hope this helps :)

Answer:

5

8

5

step by step

Love your pfp

Find the volume of the specified cone. Use 3.14 for , and round your answer to the nearest whole numbe
Diameter = 3 cm, Height = 7 cm
a 44 cu, cm
b. 66 cu, cm
c. 99 cu, cm
d 16 cu, cm

Answers

Answer:

Your answer is D 16 cu, cm

Step-by-step explanation:

ABC
Question 2

A helicopter landing pad is built on the roof of a hospital. Helicopters land inside the circular part of the pad. This part has a diameter of 50 feet.


What is the area inside the circle on the landing pad to the nearest whole number?
A
1963 feet2
B
3927 feet2
C
7854 feet2
D
15,708 feet2

Answers

Answer:

A

Step-by-step explanation:

If 50 is the diameter that thr radius is 25 and the equation to find the area of a circle is pi(r^2). So you would do pi(25^2) and that is 1963

Please help !



∆ABC is similar to ∆DEF. The measure of AB = 6, the measure of DE = 18, the measure of BC = 12, and the measure of DF = 15.

Find the measures of AC and EF.

AC =


_______________

EF =

Answers

[tex] \frac{ab}{de} = \frac{bc}{ef} = \frac{ac}{df} [/tex]=k

[tex] \frac{6}{18} = \frac{12}{ef} [/tex]

[tex]ef = 36[/tex]

from this

[tex] \frac{12}{36} = \frac{ac}{15} [/tex]

[tex]ac = 5[/tex]

[tex] \frac{6}{18} = \frac{12}{36} = \frac{5}{15} = \frac{1}{3} [/tex]

I hope it helps

Help me please please!!!!!!

Answers

Answer:

And great great the owner is 44

Step-by-step explanation:

or 36 because you have to add all sides

need help really please somebody​

Answers

Answer:

70/100 ; 3/10 ; 50/100

Step-by-step explanation:

You need to multiply numbers to make them equivalent.

1st Question:

7/10 has to multiply by 10/10 because the denominator of the other one is 100 and 10 x 10 is 100.

7 x 10 = 70

70/100 shall be your answer.

2nd Question:

This time you need to find your starting point.

A way to do this is to divide/simplify the fraction in order to make it equivalent.

You need to divide by 10 because your quotient and denominator at your starting point is 10 and 100/10 is 10.

30 divided by 10 is 3

Your Answer for this one is: 3/10

3rd Question:

Same thing as the 1st one.

Multiply by 10.

5 x 10 = 50

50/100 is your answer.


IRIS BULBS
First half-dozen
Second half-dozen
Each additional bulb
$5 per bulb
$4 per bulb
$3 per bulb
Which of the following calculations represents the
cost of 2 dozen iris bulbs?
A. 24 x $3
B. $5 + (2 x $4) + (12 x $3)
C. (6 x $5) + (6 x $4) + (12 $3)
D. (12 x $5) + (12 $4)
E.
(3 x 85) + (3 x sa) + (12 x $3)
+
$3

Answers

The calculation that represents the cost of 2 dozen iris bulbs is ($5 * 6) + ($4 * 6) + ($3 * 12)

What is an equation?

An equation is an expression that shows the relationship between two or more variables and numbers.

The cost of 2 dozens of iris bulbs is given by the equation:

Cost = ($5 * 6) + ($4 * 6) + ($3 * 12)

The calculation that represents the cost of 2 dozen iris bulbs is ($5 * 6) + ($4 * 6) + ($3 * 12)

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Sarah is designing a triangular pyramid made of all glass to go on top of a building. All of the faces of the pyramid have a height of 17 feet and a base of 20 feet.
How much glass is needed?
A.
680 sq ft
B.
340 sq ft
C.
2,040 sq ft
D.
1,360 sq ft

Answers

Answer:

Area of a triangle is 1/2 x base x height.

area of triangle = 1/2 x 20 x 17 = 170 square feet.

the image shows 4 triangles, total area = 170 x 4 = 680 square feet.

the answer is A. 680 sq. ft.

Hope this helps you!!

Please Mark me as Brainleast!!!!!!!!!!!!!

Answer: the answer is a which is 680 ft²

Step-by-step explanation: we will make 17 Times 220 divided by 2 equals 170 times by 4 equals 680 . Hope it helps you buddy .

Classify Two-Dimensional Figures question 5

Answers

Answer:

Examples of 2D shapes

2D Shape Properties

Pentagon A shape with five sides and five equal angles.

Kite A quadrilateral with two pairs of sides of the same length.

Rhombus A quadrilateral with both pairs of opposite sides parallel and all sides of the same length. Unlike a square, however, its angles are not all 90˚.

Step-by-step explanation:

What are the coordinates of A?​

Answers

I think (7,10)
I hope that I helped ;D

true or false in order to find the surface area of a cube you could find the area of one face and multiply by six

Answers

Answer:

True

Step-by-step explanation:

The surface area of a cube is the total area on each side of the cube. SInce there are 6 sides of a cube, the surface area is equal to six times the area of one of the sides, because they are all the same.

find the area sector of AOB

Answers

[tex]\textit{area of a sector of a circle}\\\\ A=\cfrac{\theta \pi r^2}{360}~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=12\\ \theta = 70 \end{cases}\implies \begin{array}{llll} A=\cfrac{(70)\pi (12)^2}{360}\implies A=28\pi \\\\\\ A\approx 87.96~cm^2 \end{array}[/tex]

Subtract. Write the answer as a fraction simplified to lowest terms.
41/40 - 3/8 =

Answers

If you subtract then it would be 13/20. The decimal form if 0.65. There are no numbers we can divide by the top and bottom so it should be 13/20.

Hey there!

41/40 - 3/8

= 41/40 - 3 × 5 / 8 × 5

= 41/40 - 15/40

= 41 - 15 / 40 - 0

= 26 / 40

= 26 ÷ 2 / 40 ÷ 2

= 13 / 20


Therefore, your answer is: 13/20


Good luck on your assignment & enjoy your day!



~Amphitrite1040:)

If 14 g of a radioactive substance are present initially and 4 yrs later only 7 g​ remain, how much of the substance will be present after 8 ​yrs?

Answers

5.25 g

Step-by-step explanation:

The half-life of a radioactive substance is the amount of time it takes for half the mass of the substance to decay.

In this question no calculations are required to get half-life. This is because it is given that it took 3 years for the 14g to halve to 7g.

To find amount of the substance after a further 4 years, we’ll use the formula;

Final amount = initial amount / 2ⁿ

Where n = elapse time / half-life

We begin by finding n;

n = 4 years / 3 years

= 4/3

Final amount;

=  initial amount / 2ⁿ

= 7  / 2 ^ (4/3)

= 5.25 g

Learn More:

For more on half-lives calculations check out;

brainly.in/question/3080737

https://brainly.com/question/1831303

https://brainly.com/question/2674699

HELP!

You own a square plot of land and you want to determine its surface area. You know that one side of land measures 10 longer than what the appraisers estimated, but you lost the paperwork with the information. Write an expression to represent the area of your land.

What is the area of the property if x = 12?

Answers

The area of the property is the product of its dimensions, and the expression for the area is (x + 10)²

How to determine the expression for area?

The area of the land is the product of its dimensions.

Let the length and the width of the land be x.

So, the area measured by the appraisal is:

Area = x²

One side of the land is 10 more than the measured length.

So, we have:

Area = (x + 10)²

Substitute 12 for x

Area = (12 + 10)²

Evaluate

Area = 484

Hence, the area of the property is 484

Read more about area at:

https://brainly.com/question/14137384

Write an equation in slope-intercept form for the line shown.
The equation in slope-intercept form is _______ .

Answers

To write the equation in slope-intercept form

  ⇒ must know what is the slope-intercept form

       ⇒ [tex]y = mx + b[/tex]

m: the value of the slopeb: the value of the y-intercept

Let's find the slope first:

   ⇒ must know the slope's formula

       ⇒ [tex]\frac{y2-y1}{x2-x1}[/tex]

(x1, y1) --> one point on the line(x2, y2) --> another point on the line that is not (x1, y1)

Let's choose (0,1) and (-3,0)Now let's find the slope

          ⇒ [tex]\frac{0-1}{-3-0}=\frac{-1}{-3} =\frac{1}{3}[/tex]

Now let's find the y-intercept

  ⇒ which occurs where the x-value of the coordinate is 0

    ⇒ that point is (0,1)

       ⇒ thus b = 1

Now let's set up the equation in slope-intercept form

     [tex]y = \frac{1}{3} x+1[/tex]   <-- Answer

Hope that helps!

   

Answer:

y-1/3x+1:

hope it helped

The base of a prism are right triangles with leg lengths of 7 inches and 5 inches. the prism height is 12 inches. what is the volume of the prism?
A 105
B 203
C 210
D 420 [but we know for certain d is wrong]

Answers

Answer:

The volume formula is length x width x height. 7x5x12=420 cubic inches

Step-by-step explanation:

By rewriting the formula for the multiplication rules you can write a formula for finding conditional probabilities. The conditional probability of event b Occurring giving that event a has occurred is
The probability that an airplane flight departs on time is 0.91
The probability that a flight arrives on time is 0.89.
The probability that a flight departs and arrives on time is 0.84
The probability that a flight departed on time given that it arrives or
(Round to the nearest thousandth as needed

Answers

The probability that a flight departed on time given that it arrives is 0.92

Conditional Probability

The conditional probability of event B occurring giving that event A has occurred is expressed as

P(B|A) = P(A and B)/P(A)


Given the following parameters

P(A and B) = The probability that a flight departs and arrives on time = 0.84

P(A) = The probability that an airplane flight departs on time = 0.91

P(B | A) = 0.84/0.91
P(B | A) = 0.92

Hence the probability that a flight departed on time given that it arrives is 0.92

Learn more on conditional probability here: https://brainly.com/question/25870256

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Which statement describes the transformation of figure 2 into figure 3?

Answers

Answer:

2 reflection across the y axis

paid well, HELP I need someone with tangent knowledge...

Answers

[tex]tan (M) = \frac{side-opposite-angle-M}{side-adjacent-angle-M} =\frac{8\sqrt{2} }{4} =2\sqrt{2}[/tex]

Hope that helps!

ps. I attached a sheet of trigonometry identities

TODAY'S BRAIN TEASER

Solve it and gain 50 points plus BRAINLIEST

Solve any two questions out of three

WRONG COPIED OR SPAM WILL BE INTOLERABLE

SO SO SO NOT WASTE TIME IF YOU DON'T KNOW

GOOD LUCK ​

Answers

Answer:

Question 3

Find the range of the function for the domain 2 < x < 3

[tex]f(2)=(2)^2-1=3[/tex]

[tex]f(3)=(3)^2-1=8[/tex]

Therefore, the range of [tex]f(x)=x^2-1[/tex] is [tex]3 < f(x) < 8[/tex] with domain 2 < x < 3

This means that for the function to be continuous, when the domain is x=3, f(x) = 8

[tex]f(3)=2a(3)=6a[/tex]

[tex]\implies 6a=8\implies a=\dfrac43[/tex]

Similarly, when the domain is x > 3, f(x) > 8

[tex]f(3)=b(3)-4=3b-4[/tex]

[tex]\implies 3b-4 > 8 \implies b = 4[/tex]

Therefore, [tex]a=\dfrac43[/tex] and b = 4

Question 5

[tex]\textsf{let}\:u=\ln (x)[/tex]

[tex]\implies \dfrac{du}{dx}=\dfrac{1}{x}\implies dx=x\:du[/tex]

[tex]x=1\implies u=0[/tex]

[tex]x=3 \implies u=\ln 3[/tex]

[tex]\implies \displaystyle \int\limits_{1}^{3} \dfrac{\ln x \sin (\ln x)}{x} \,\:dx=\displaystyle \int\limits_{0}^{\ln 3} \dfrac{u \sin u}{x} \, \cdot x\:du=\displaystyle \int\limits_{0}^{\ln 3} (u \sin u) \, \:du[/tex]

Use integration by parts:

[tex]\displaystyle \int u\dfrac{dv}{dx} \, dx=uv- \displaystyle \int v \dfrac{du}{dx} \, dx[/tex]

[tex]\textsf{where}\:u=u\:\textsf{and}\:\dfrac{dv}{dx}=\sin u[/tex]

[tex]\implies \dfrac{du}{dx}=1\:\textsf{and}\:v=\int \sin u=-\cos u[/tex]

[tex]\implies \displaystyle \int\limits_{0}^{\ln 3} (u \sin u) \, \:du=-u \cos u- \int\limits_{0}^{\ln 3}-\cos u \,\:du[/tex]

[tex]\begin{aligned}\implies \displaystyle \int\limits_{0}^{\ln 3} (u \sin u) \, \:du & =\left[-u \cos u+ \sin u\right]_{0}^{\ln 3}\\ & =[- (\ln 3) \cos (\ln 3)+ \sin (\ln 3)]-[-0 \cos (0)+ \sin (0)]\\\\ & =[- (\ln 3) \cos (\ln 3)+ \sin (\ln 3)]-0\\\\ & = 0.3908925527...\end{aligned}[/tex]

Explain why a balance of less than -$10 represents a debt greater than $10.

Answers

Answer:

tbh I'm in 6 grade-_- and it's maybe higher than 10$

If a rectangle has a base of 6 units, and a helght of 8 units, what Is Its area?​

Answers

Answer:

Answer is 48

Step-by-step explanation:

6x8 = 48

Hope it helps!

Answer:

area=b•h

6 units • 8 units = 48 units²

35) Use a formula to find the area of the figure.
a
15 in.
7 in.
20 in.

Answers

Answer:

c:) 150 in²

Step-by-step explanation:

It's basically and SAS triangle

SAS is Side, Angle, Side

side 15 in angle 90° and 20 in

a = 20 in

b = 25 in

c = 15 in

Angles:

A = 53.1301 °

B = 90 °

C = 36.8699 °

Other:

P = 60 in

s = 30 in

K = 150 in2

r = 5 in

R = 12.5 in

Agenda:

A = angle A

B = angle B

C = angle C

a = side a

b = side b

c = side c

P = perimeter

s = semi-perimeter

K = area

r = radius of inscribed circle

R = radius of circumscribed circle

Part A
The distance that Eric can travel by driving to work can be represented by a linear equation because he sets his cruise control and is moving at a constant rate. He drives at a rate of 75 mph on the interstate for a total of 1.5 hours.
What is the linear equation that can be used to find the distance that Eric travels each day? In the equations d = distance traveled, r = rate and t = time taken.
A. d = rt
B. d = t/r
C. d = r/t
D. d = r + t
E. d = r/75
Part B
What is the total distance that Eric travels each day?
A. 37.5 miles
B. 75 miles
C. 112.5 miles
D. 150 miles
E. 187.5 miles
WILL GIVE BRAINLIEST AND 40 POINTS

Answers

Answer:

Step-by-step explanation:

There's a saying to this kind of equation: Rate + Time = Distance and B best fits the saying, so B must be right (Don't quote me on that, it may be wrong)

the linear equation that can be used to find the distance that Eric travels each day is A. d = rt & the total distance that Eric travels each day is C. 112.5 miles.

What is speed?

Speed is measured as distance moved over time.

here, given that,

He drives at a rate of 75 mph on the interstate for a total of 1.5 hours.

so, the linear equation that can be used to find the distance that Eric travels each day is A. d = rt

i.e. d= 75*1.5

      =112.5

& the total distance that Eric travels each day is C. 112.5 miles.

To learn more on speed click:

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what is the reciporcal of 7/6

Answers

Answer:

6/7

Step-by-step explanation:

you juts switch the top and bottom

Brainleist please

PLEASE HELP PLEASE PLEASE

Answers

False it is the volume that would show that

Answer:

True! We can tell that it is still there through weight becuase weight is a method of evidence/measurement. Hope this helps!


write the inequality from the given number line.​

Answers

Answer:

[tex]3 \leqslant - 3[/tex]

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