Mathematics High School

Solve the following equation by combining like terms:
x +x +2 +3x- 6 = 31

Answers

Answer 1

Answer:

x=7

Step-by-step explanation:

We want to get the variable "x" alone to get our answer. So.

1. combine like terms

x+x+2+3x-6=31

like terms in equation: (left side)

x, x, 3x= 5x       (equation: x+x+3x)

2, -6= -4             (equation: 2-6)

so, this is what the equation would look like with our new answers:

5x-4=31

2. add 4 to both sides

5x-4+4=31+4

(on left side of equation, the -4 and +4 cancel each other out, leaving the 5x alone)

5x=35

3. divide 5 from both sides, to get the "x" alone

5x/5=35/5

so, our answer would be:

x=7

I hope this was helpful :)

Related Questions

Can someone help me out? :(

Answers

Answer:

the length of AB is 5

Step-by-step explanation:

Answer:

4, -3

Explanation:

From A go to the right 4, and then from B go down 3

please help me im so confused i cant fail

Answers

Step-by-step explanation:

since the volume formula is given in the picture,

volume of the cylinder = π x 3.75^2 x 6.21 = 274.349....in^3 (this is the exact answer)

HOWEVER,

since question says round off to nearest whole number,

Volume = 3 x 4^2 x 6 = 288in^3

therefore, answer = option C.

Hope that helps.

If you like to venture further, do check out my insta (learntionary) where I constantly post math tips! Thanks!

Carlos is trying to read 12 pages of his book a night. The book has 144 pages. How many
days will it take him to finish the book?
NEED THE ANSWER ASAP

Answers

Answer:

12×12 =144

Answer is 12 days

The image point of A after a translation right 1 unit and down 2 units is the point B (9,3). Determine the coordinates of the pre-image point A.

Answers

Alright, it went 1 to the right and down 2 times.

So for point B, you calculate the opposite.

Point B goes 1 left while going up by 2.

(9 - 1, 3 + 2) = (8, 5)

Pre-image point A is (8, 5)

The preimage of point A before a translation right 1 unit and down 2 units

is (8, 5).

What are transformations?

Two-dimensional figures can be transformed mathematically in order to travel about a plane or coordinate system.

Dilation: The preimage is scaled up or down to create the image.

Reflection: The picture is a preimage that has been reversed.

Rotation: Around a given point, the preimage is rotated to create the final image.

Translation: The image is translated and moved a fixed amount from the preimage.

Given, The image point of A after a translation right 1 unit and down 2 units is point B (9, 3) so we go exact opposite 1 unit left and 2 units up which is

(- 1, 2).

∴ The pre-image point A is (8, 5).

learn more about translations here :

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Jayme was almost finished running the Los Angele Marathon. So far, she has ran 25 miles in 6 hours. At the same rate, how long would it take her to do a 100 miles Triathlon?

Answers

Answer:

24hrs

Step-by-step explanation:

100 devide by 25 x 6

Is a triangle with sides that measure 6 inches, 8 inches, and 9 inches a right triangle?

Answers

Answer:

No

Step-by-step explanation:

A right triangle needs to have a right angle in this case this triangle does not. The next answer up is a triangle with 6,8, and 10 inches. This would give you a right triangle.

It is a
r
i
g
h
t
−
∠
e
d
Δ
, as it has got one angle of measure
90
∘
.

Explanation:
Even if it had not been mentioned that the
Δ
has one
90
∘
∠
, we
can infer this fact from the given lengths of the sides.
Observe that,
6
2
+
8
2
=
10
2
; hence, by the converse of
Pythagoras' Theorem, the
∠
opp. to side with length
10
'
is a
right-angle.
Enjoy Maths.!

HELPPP
Order from least to greatest: 6.24, 6.08, 6.009, 0.6
A) 6.24, 6.08, 6.009, 0.6
B) 0.6, 6.24, 6.009, 6.08
C) 6.009, 6.08, 0.6, 6.24
D) 0.6, 6.009, 6.08, 6.24

Answers

Answer:

D

Step-by-step explanation:

A milk truck delivers 396 dozen gallons of milk to stores in 1 day. Write and solve an equation to find ​n, the number of gallons of milk the milk truck delivers in 1 day. nothing

Answers

Answer:

[tex]n = 4752 \ gallons[/tex]

Step-by-step explanation:

Given

Delivery: 396 dozens gallons in a day

Required

Determine the number of gallons in a day

From the question above, we understand that:

[tex]n = 396\ dozens\ gallon[/tex]

From unit conversion:

[tex]1\ dozen = 12[/tex]

So:

[tex]n = 396\ dozens\ gallon[/tex] becomes

[tex]n = 396 * 12 \ gallon[/tex]

[tex]n = 4752 \ gallons[/tex]

Hence, 4752 gallons of milk is delivered daily

Which answer choice shows 2.115 rounded to the nearest tenth?
A. 2.12
B. 2.15
C. 2.2
D. 2.1

Answers

Answer:

A

Step-by-step explanation:

cause 5 or > 5 it will add on for the tenth ,in the tenth place their is one so we add one and it will be 2..

3+3x - (х-2) I amconfused

Answers

Answer:

Exact Form:

x

=

−

1

±

√

2

Decimal Form:

x

=

0.41421356

…

,

−

2.41421356

…

i dont know if this helps

Step-by-step explanation:

3+3x-(x-2)
= 3+3x-x+2
= 3+2x+2
= 2x+5

Answer : 2x+5

(x^3y^n/z^m+1)^k
HELP

Answers

Answer:

ayo i need sum points

Step-by-step explanation:

ykikykikykyiky

Please help! I need a good grade

MARKING 5 STARS AND BRAINLIEST
x/1.8= 2.4/3.6

Answers

Answer:

1.2

I checked in the RSM system thing

Hey guys, I am about to start studying for a math test happening in two weeks about statistics and I am wondering if you guys have any tips you can give me to ace this test. I have been failing in math lately because I think that I know how to solve a certain problem when revising but when it comes to the test I forget the process. Some tips, please?

Answers

Answer more questions on every topic you’ve been thought. Answer research questions and questions likely to come out in the exam. Dwell on what you are trying to know more that what you already know. A planner could help as well and the Good God would help you

which line on the graph below has a slope of zero??
5
R
-3-3
2 3 4
5
&
OS

Answers

Answer:

Q

Step-by-step explanation:

Q is the answer...........,....

Find the measure of anlge A.
7x + 3
7x + 3
A
PLEASE HELP!!!!!!!

Answers

Answer:

3 + 7x = 7x + 3

Step-by-step explanation:

Simplifying

7x + 3 = 7x + 3

Answer:

Angle A = 45 degrees

Step-by-step explanation:

7x+3 + 7x+3 +90 = 180

14x + 96 = 180

14x = 84

x = 6

Angle A = 7x+3. --> 7(6) + 3 --> 45

Angle A = 45 degrees

Answer the 3 questions plzzz ASAP

Answers

Answer:

x = 20, #8 is 59, #9 is 41

Step-by-step explanation:

Rewrite using a negative exponent. 5/x²

Answers

See attachment for math work and answer.

is (2,-3) a solution for the inequality y<2x-5?

Answers

Answer: no

Step-by-step explanation:

NEED HELP ASAP

Vector Vector P Q has an initial point at (3, 3) and its terminal point is at (5, 7).

Vector Vector R S has an initial point at (4, –6) and its terminal point is at (1, –5).

What is the component form of vector Vector P Q minus R S?


___________ , _____________

Answers

Answer:

5, 3

Step-by-step explanation:

correct on edge2020

Answer:

(5, 3)

Step-by-step explanation:

late but still lol

Classify the system and identify the number of solutions.
4x + 3y + 6z = 25
x + 5y + 7z = 13
2x + 9y + z = 1

Answers

Answer:

consistent, independent; one

Step-by-step explanation:

The solution is (4, −1, 2). Because the system has one solution, it is consistent and independent.

The  system of equation is consistent and have unique solution.

What is Matrix?

Rows and columns of numbers are arranged in a matrix.

A rectangular matrix is a grouping of numbers into rows and columns. The matrix A, for instance, has two rows and three columns.

Given:

4x + 3y + 6z = 25

x + 5y + 7z = 13

2x + 9y + z = 1

Writing the into matrix form

A= [tex]\left[\begin{array}{ccc}4&3&6\\1&5&7\\2&9&1\end{array}\right][/tex]  and B= [tex]\left[\begin{array}{ccc}25\\13\\1\end{array}\right][/tex]

Now, find the determinant we get

[tex]D_x[/tex] = -796, [tex]D_y[/tex]= 199, [tex]D_z[/tex] = -398

and Determinant of matrix A= -199

So, x= -796/-199= 4

y= 199/-199 =-1

z= -398/-199 = 2

hence, the system of equation is consistent and have unique solution.

Learn more about matrix here:

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in the circle shown, AB is tangent to circle o at point and OC is a radius


Which relationship is true?

Answers

Answer:

A. [tex] \overline{OC} \perp \overline{AB} [/tex]

Step-by-step explanation:

According to tangent theorem, a tangent is formed when the radius of a circle is perpendicular to the line, meeting at a point around the circle, such that the tangent line would be perpendicular to the radius of the circle with a center.

Given that [tex] \overline{AB} [/tex] is a tangent of the circle O, at a point C, and [tex] \overline{OC} [/tex] is a radius, therefore, it follows that:

[tex] \overline{OC} \perp \overline{AB} [/tex].

This means the radius of the circle is perpendicular to the tangent formed at point C.

Find the length of the Segment

Answers

Answer:10

Step-by-step explanation:

Please hurry please I will mark smartest

Answers

i believe 15 miles more

Answer:

B = 75

A = 60

b 15+ faster than a

PLS HELP EXTRA POINTS GIVEN OUT

Answers

Answer:

C


Step-by-Step explanation:

Combine like terms:
-12x - 1 + 4x + 14

Answers

-8x + 13 is the correct answer because -12+ 4 = 8 and 14-1 = 13

Answer: -8x + 13

Step-by-step explanation:

Which is different? Find "both" answers.





Find AC+CB.



Find BC−AC.



Find AB.



Find CA+BC.


Question 2

The "different" answer is

. The "same" answer is

.

Answers

Answer:

Step-by-step explanation:

Question 1

BC - AC and AB will provide different answers when compared to AC + CB and CA + BC. This is because AC means A multiplied by C (AC) or C multiplied by A (CA); thus means AC and CA are the same. Also, CB means C multiplied by B (CB) or B multiplied by C (BC); thus means CB and BC are the same.

Hence, Finding AC + CB will provide the same answer as finding CA + BC

However, finding BC - AC will provide different answer to finding AB because BC - AC means the multiplication of A and C is subtracted from the multiplication of B and C - the answer thereof will most likely be different from the multiplication of just A and B.

Question 2

From the explanation above,

The "different" answer is

Find BC - AC  and Find AB

The "same" answer is

Find AC + CB and Find CA + BC

34 divided by 35.42 plss help

Answers

Answer:

1700/1771

Step-by-step explanation:

Answer:

.96

Step-by-step explanation:

if u divide 34/35.42, you get the exact answer of .9599096556 . If u round your decimal u will end up with .96 . Hope this helped!

A rectangle's length to width ratio is 9:4. If its length is 14 cm more than its width, what is its area?​

Answers

the area of the rectangle should be 87.1cm^2

What are the coordinates of point A?​

Answers

Answer:

(-3,-6)

Step-by-step explanation:

Thanks a lot

Thanks agin

Answer:

-3,-6

Step-by-step explanation:

the numbers orders are the order the alphabet is in so x then y so the x line is -3 and they y line is -6

Jacy has a choice of cell phone plans. Plan A is to pay $260 for the phone and then pay $70 per month for the service. Plan B is to get the phone for free and pay $82 per month for service.

Answers

Answer:

What even is the question?

Step-by-step explanation:

There is no question in what u said.

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