7x -3x = 20?

I do not know what this is…

Answers

Answer 1

7x-3x = 20

Simplify by subtracting:

4x = 20

Divide both sides by 4:

X = 5

Answer 2

Answer:

7x-2x=20

6x=20

6x÷6=20÷6

x=16.67


Related Questions

through: (1, 1), slope = 6

Write the slope-intercept form of the equation of the line through the given point with the givenslope.

Answers

Answer:

[tex]y=6x-5[/tex]

Step-by-step explanation:

Hi there!

Slope-intercept form: [tex]y=mx+b[/tex] where m is the slope and b is the y-intercept

We're given that the slope is 6. Plug this into [tex]y=mx+b[/tex] as m:

[tex]y=6x+b[/tex]

Now, to solve for the y-intercept, plug in the point (1,1) and solve for b:

[tex]1=6(1)+b\\1=6+b\\b=-5[/tex]

Therefore, the y-intercept of the line is -5. Plug this back into [tex]y=6x+b[/tex]:

[tex]y=6x+(-5)\\y=6x-5[/tex]

I hope this helps!


What is the ratio of all the what is the ratio of all the
marbles to yellow marbles? State the letter of the correct answer.
A. 2:15
B. 1:15
C. 15:1
D. 15:2

Answers

i dont know about all the marbles
i think choose A or B
The question is incomplete….u want to put whole the question…

IN A GIVEN FIGURE ABCD IS A SQUARE THE MEASURE OF ANGLE DBC IS

Answers

Answer:

Where is figure. Hope you understand me

Step-by-step explanation:

Please mark me brainliest thanks

Can someone please help me I don’t get this (Due today)

Answers

Answer:

Which grade's book exercise is this?

A library wishes to build an access ramp for wheelchairs. The main entrance of the library is 8 ft. above sidewalk level. If the architect recommends a grade (angle of elevation) of 6°, how long must the access ramp be?​

Answers

Answer:

About 76.5 ft.

Step-by-step explanation:

Draw a diagram of a right triangle.  The shorter leg represents the height of the main entrance of the library, which is 8 ft.  The longer leg won't matter in this case.  The hypotenuse is what we're trying to find, so mark it as x.  We know there's a 6° angle of elevation, so the 30° angle of the triangle will be 6° in this case.  Now we have to use trig.  Think of Soh Cah Toa.  The 6° is opposite from 8 and the hypotenuse is x.  So, the equation to find x would be:

sin (6°) = 8/x

Multiply both sides by x

sin (6°) * x = 8

Divide both sides by sin (6°)

x = 8/sin (6°)

When putting it into a calculator, your answer should be 76.534, which rounds to 76.5 ft.

Can someone help me please?

Answers

Answer:

Associative property.

Step-by-step explanation:

[tex]assosiative \: property \\ for \: any \: nubers \: likeur \: question \: \\ didnt \: affect \: theanswer \\ thank \: you[/tex]

Three of eight kids in a class are randomly chosen to present their book reports today. How many different possible sequences of three presentations are there?
A. 56
B. 120
C. 336
D. 512

Answers

512 just because it’s the right answer

if the area of a right angle triangle with base 3 cm is 6cm find the height​

Answers

Answer:

A=1/2 Bh

6cm^2=1/2.3cm.h

12cm^2=3cmh

H=4cm

h(x)=x^2-x-1; h(2a+7)​

Answers

Answer:

2

Step-by-step explanation:

By how much does x power 2 - ax +5 exceeed 3x power 2 -5x=6 I hope this helps :)

Which does not represent an integer?


Question 1 options:


−182


45


9–√


0

Answers

Answer:

9 minus a square root is the answer I think...

Step-by-step explanation:

Integers are all positive&negative numbers + 0

Calculate the volume of a warehouse that has inside dimensions of 22.4 meters by 11.3 meters by 5.2 meters.

Answers

I think it should be 1316.22 cubic meters

The volume of the warehouse with the three dimensions is V = 1,316.224 cubic meters.

Given data:

To calculate the volume of the warehouse, you need to multiply its length, width, and height:

Volume = Length *  Width * Height

The volume of the rectangle is given by the product of the length of the rectangle and the width of the rectangle and the height of the rectangle

Given the dimensions:

Length = 22.4 meters

Width = 11.3 meters

Height = 5.2 meters

Substitute these values into the formula:

Volume = 22.4 m × 11.3 m × 5.2 m

Calculate the result:

Volume = 1,316.224 m³

So, the volume of the warehouse is approximately 1,316.224 cubic meters.

To learn more about volume of rectangle, refer:

https://brainly.com/question/25422723

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Math For test HELPPPP plz due in 45 mins

Answers

It’s BD because it need to be the opposite ray and this one is the opposite ray so yes this is it

<3 and <4 are supplementary angles. Given m<3 = 56°, find m<4.

Answers

m<3=56°m<4=?

Both are supplementary angles.

[tex]\\ \rm{:}\twoheadrightarrow m<3+m<4=180[/tex]

[tex]\\ \rm{:}\twoheadrightarrow 56+x=180[/tex]

[tex]\\ \rm{:}\twoheadrightarrow x=180-56[/tex]

[tex]\\ \rm{:}\twoheadrightarrow x=124[/tex]

Convert 99000 milligrams into pounds. Round your answer to the nearest hundredth.

Answers

Answer:

0.22

Step-by-step explanation:

Can any one tell me this i have to do this for my tomorrow school

Answers

Answer:

Step-by-step explanation:

5068300- five million, sixty-eight thousand, three hundred

472607- four hundred seventy-two thousand, six hundred seven

51325678- fifty-one million three hundred twenty-five thousand six hundred eighty-seven

Rick had 6 meters 63 centimeters of wire in his toolshed. He bought 2 meters 24 centimeters more wire and put this in his shed. The next day, he used 344 centimeters of wire. How much wire does Rick have left in the toolshed?

Answers

Answer:

543 centimeters or 5 meters 43 centimeters

Step-by-step explanation:

663+224=887

887-344=543

Exercise 1

4x...X4 =

7 times

Answers

It’s 4 power 7 understand though the demonstration down :)
7
4
25x7 67/7 was a pink rabbit random answer

cb-b; use b = - 3, c = - 1​

Answers

Answer:

6

Step-by-step explanation:

Let b= - 3, c= - 1cb - b = ?(-1)(-3) - (-3) = ?3 - (-3) = 6

[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]

8x-5y-2x-3y simplify the expression by combining like terms

Answers

you’d simplify it to 6x-8y.
8x and -2x go together which give you 6x
-5y and -3y go together which give you -8y

I Need to solve it brainliest

Answers

Answer:

h(-5) = (-2)^2 + 5 = 9

h(-1) = (2)^2 + 5  = 9

(9-9)/4 = 0

average rate of change is 0

Step-by-step explanation:

six boys went on a camping trip . their equipment weight was138 kg if the equipment was divided equally in weight how much did each boy carry

Answers

Answer:

138 kg / 6 = 23 kg per boy

Evaluate with help of distributive property :
i. 425 x 136 ii. 4005 x 67

Answers

Answer:

1 : 57,800.

2: 268,335

Step-by-step explanation:

hope it helps you

The expressions are evaluated using distributive property below -

We have -

i. 425 x 136

ii. 4005 x 67

We have to evaluate them with help of distributive property.

State the  property of distributivity of multiplication over addition.

Distributive property of multiplication over addition :  

a × (b + c) = a × b + a × c

According to question, we have -

i. 425 x 136

ii. 4005 x 67

Now -

425 x 136 = 425 x (6 + 30 + 100) = 425 x 6 + 425 x 30 x 425 x 100

and

4005 x 67 = 4005 x (60 + 7) = 4005 x 60 + 4005 x 7

Hence, the evaluation using distributive property is done.

To solve more questions on Distributive property, visit the link below -

https://brainly.com/question/21172683

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Jennah was evaluating the expression-7+83+ 14. Here is her work
-7+ 83 + 14
75 +14
89
Do you agree or disagree with her answer Explain.

Answers

Answer:

NO.

AS SHE HAS DONE SUBTRACTION THEN ADDITION .

BUT WE SHOULD TO ADDITION THEN SUBTRACTION.

V.B.O.D.M.A.S

ANS IS 90...

[tex]no \: i \: am \: totally \: disagree \: with \: \\ her \: because \: - 7 + 83 + 14 \\ = 76 + 14 \\ = 90 \\ she \: get \: 89 \\ [/tex]

thank you

Is √5x - 12 = 0 nonlinear or linear?

Answers

Nonlinear because in order to be linear, it has to be a straight line. In order to be a straight line, the degree must be 0 or 1 for each of its variables. This does not meet that criteria, thus being non linear

There are 1024 bytes in a kilobyte. Write an expression that describes the number of bytes in a computer chip with n kilobytes. helpppp ​

Answers

Bytes are used to represent the number of bits in a computer system. There are 1024n bytes in n kilobytes.

Using the following representation:

[tex]KB \to[/tex] Kilobyte

[tex]B \to[/tex] Bytes

1024 bytes in 1 kilobyte is represented as:

[tex]1024B = 1KB[/tex]

Let the number of bytes in n kilobytes be x.

So, we have:

[tex]x = n\ KB[/tex] and

[tex]1024B = 1KB[/tex]

Cross multiply

[tex]x \times 1KB = 1024B \times nKB[/tex]

Divide both sides by KB

[tex]x \times 1 = 1024B \times n[/tex]

[tex]x = 1024n\ B[/tex]

Remove the units for proper representation

[tex]x = 1024n[/tex]

Hence, there are 1024n bytes in n kilobytes

Read more about bytes at:

https://brainly.com/question/1832188

Answer: 1024n

Step-by-step explanation:

an angle measures 15 degrees more than its complement. Find the measures of the two angles

Answers

Answer:

The first angle is 37.5° and the second would be 52.5°

Step-by-step explanation:

Angles are complementary when their sums add up to 90°.

[tex]x+(x+15) = 90\\x+x+15=90\\x+x=75\\x=37.5[/tex]

The first angle is 37.5° and the second would be 52.5°, after we plug in x.

Have a nice day. Feel free to ask questions. Spread The Love.

Answer:

Angle 1 = x = 37.5°Angle 2 = x + 15 = 52.5°

Concept:

Here, we need to know the idea of the complementary angle.

Two angles are said to be complementary if they add up to 90 degrees.

Be aware that three or more angles cannot be complementary even if their sum is 90 degrees.

Solve:

Given information

Angle 1 = x

Angle 2 = x + 15

Given expression deducted from the definition of the complementary angle

Angle 1 + Angle 2 = 90

Substitute values into the expression

(x) + (x + 15) = 90

Combine like terms

(x + x) + 15 = 90

2x + 15 = 90

Subtract 15 on both sides

2x + 15 - 15 = 90 - 15

2x = 75

Divide 2 on both sides

2x / x = 75 / 2

[tex]\boxed{x=37.5}[/tex]

Find the measure of angle 2

Angle 2 = x + 15 ⇔ Given expression

Angle 2 = (37.5) + 15 ⇔ Substitute values into the expression

Angle 2 = [tex]\boxed{52.5}[/tex] ⇔ Simplify by addition

Hope this helps!! :)

Please let me know if you have any questions

If the linear function is f(x) = 3x + 10, then the value of 3 could represent:

O The initial investment.
O The starting point.
O None of these choices are correct.
O The average change.
O The line of reflection.

Answers

Answer:

3 is the gradient ryt?

Step-by-step explanation:

so Ummm C?

f(x)=1/x; Find f(1/2)​

Answers

Answer:

2

Step-by-step explanation:

f(x) = 1 / x

f(1/2) = 1 / (1/2)

Reciprocal of 1/2 is 2, since you flip numerator and denominator:

f(1/2) = 2

Pre-Calc HELPP I’ll give brainliest

Answers

The answer is: 1/3 (5)

Point N is on line segment \overline{MO}
MO
. Given MN=2x,MN=2x, NO=x-2,NO=x−2, and MO=2x+9,MO=2x+9, determine the numerical length of \overline{MN}.
MN
.

Answers

Answer:

 NO = 10

Step-by-step explanation:

The segment addition theorem tells you ...

 MN + NO = MO

Substituting the given expressions for these lengths, we have ...

 x + 5x = 3x+6

 3x = 6 . . . . . . . . . subtract 3x

 x = 2 . . . . . . . . . . divide by 3

We can use this value to find the length NO:

 NO = 5x = 5(2) . . . . substitute for x

 NO = 10

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