what is the value in the equation 2x - 10 = 30

Answers

Answer 1
2x -10 = 30
add ten to both sides
2x = 40
divide by two
x = 20
Answer 2

Answer: x=20

Step-by-step explanation: 2(20)=40 40-10=30


Related Questions

I need help with these problem PLEASE HELP

Answers

Answer:

No, The sum of the lengths of sides b, c must be greater than the length of the remaining side a.

Step-by-step explanation:

b + c ≤ a

21 + 13 ≤ 38

51 ≤ 38

good luck, i hope this helps :)

Carmen has 35% off to buy a coupon to buy a new basketball shoes. The original price of the shoes were 85.00 how much money does Carmen save by use if the coupon

Answers

Answer:

Carmen saves $29.75

Step-by-step explanation:

I hope this helps!

100-35=65%
65/100*85= $55.25
$85-$55.25= $29.75 is saved

26mm to centi meters

Answers

Step-by-step explanation:

10 mm = 1 cm

26mm = 26 /10 = 2.6 cm

Hope it will help :)

according to the property √a/√b=√a/b, which choice is equivalent to the quotient below? √72/2​

Answers

6 would be the answer

According to the property [tex]\frac{\sqrt{a} }{\sqrt{b} }[/tex] = [tex]\sqrt{\frac{a}{b} }[/tex], [tex]\sqrt{\frac{72}{2} }[/tex] = 6.

What is square root?

The square root of a number is the value of power 1/2 of that number. In other words, it is the number whose product by itself gives the original number.

Given

[tex]\sqrt{\frac{72}{2} }[/tex]

= [tex]\sqrt{36}[/tex]

= 6

According to the property [tex]\frac{\sqrt{a} }{\sqrt{b} }[/tex] = [tex]\sqrt{\frac{a}{b} }[/tex]

[tex]\sqrt{\frac{72}{2} }[/tex] = [tex]\frac{\sqrt{72} }{\sqrt{2} }[/tex]

= [tex]\frac{6\sqrt{2} }{\sqrt{2} }[/tex]

= 6

Thus, according to the property [tex]\frac{\sqrt{a} }{\sqrt{b} }[/tex] = [tex]\sqrt{\frac{a}{b} }[/tex], [tex]\sqrt{\frac{72}{2} }[/tex] = 6.

Find out more information about square root here

https://brainly.com/question/15329983

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The Teacher is grading spelling tests for a 2nd grade class. Out of 8 words, most students only got 3 correct. What is the percent of correct answers?

Answers

Answer:

35% because 4 would be 50% so its prob around 35 or 40

Answer:

35% because 4 would be 50%

Step-by-step explanation:

Slove for x
4 ( 4x+15)=24

Answers

Answer:

x=-9/4

Step-by-step explanation:

4(4x+15)=24 - divide both sides

4x+15=6 - move constant to the right

4x=6-15 -solve for the difference

4x=-9 - divide both sides

solving systems of equatins using substitution with both equations in y=mx+b

PLZZZ HELP ME PLZZ

Answers

Ya good luck I can’t help ya there

Write an equation that you could subtract from 4x+3y=-7 to eliminate a variable. Then solve the system.

Answers

x= 7/4 - 3/4          

you just have to subtract on variable and then put it on the other side, eventually you will have to divide it all by 4, which you can't do, so it ends up as a fraction:)                                        

what is the answer to this question ​

Answers

4x^2 -2x +3
mark me as brainliest if i’m right !

if 40% is 972 how much is 100%?

Answers

Answer:

2430

Step-by-step explanation:

40%-> 972

100% -> 972÷40×100

          = 2430


x/4- 3 = 9
Answer To the question

Answers

Answer:

x=48

Step-by-step explanation:

Solve for  x  by simplifying both sides of the equation, then isolating the variable.

Tell whether the sequence is arithmetic. If it is, identify the common difference -7.-3.1.5....​

Answers

9514 1404 393

Answer:

  yes, 4

Step-by-step explanation:

We assume your sequence is supposed to be ...

  -7, -3, 1, 5

First differences are ...

  -3 -(-7) = 4

  1 -(-3) = 4

  5 -1 = 4

These differences are constant, so we can conclude the sequence is an arithmetic sequence, and the common difference is 4.

Juan can walk to school, a distance of 0.75 mile, in 8 minutes. Assuming he walks at a constant rate, write the linear equation that represents the situation.

helpppp

Answers

He walks 1 mile in 12 minutes so 5mph so y=5x

A bag of 8 rolls for $1.89 or a bag of 18
rolls for $3.79

Answers

Answer:

8 rolls for $1.89

Step-by-step explanation:

when you divide to see how much each one costs the 8 rolls is better

Answer:

8 rolls for 1.89

Step-by-step explanation:

Help meh im dummy : l

Answers

Step-by-step explanation:

blue box is going to be 9.897

orange box is going to be -13

9.897*10^-13 = is an equation  

you multiply 9.987 x 10 to the power of -13 (10^-13)

your exponent is -13 so first do the exponents after you do that you should get your answer.

Please someone help me quick!!!! It's about Domain and range, Please! Anyone!

Answers

Answer:

Step-by-step explanation:

They already said the domain of f(x) is x≥0.

The smallest value of f(x) is f(0) = 9.

Range of f(x) is y≥9.

The radicand of a square root must be non-negative, so the domain of f⁻¹(x) is x≥9.

The range is y≥0.

QUICK PLEASE TIMED TEST I GIVE GRINLIEST (I suck at math)
James determined that these two expressions were equivalent expressions using the values of x = 4 and x = 6. Which statements are true? Check all that apply.

7 x + 4 and 3 x + 5 + 4 x minus 1
When x = 2, both expressions have a value of 18.
The expressions are only equivalent for x = 4 and x = 6.
The expressions are only equivalent when evaluated with even values.
The expressions have equivalent values for any value of x.
The expressions should have been evaluated with one odd value and one even value.
When x = 0, the first expression has a value of 4 and the second expression has a value of 5.
The expressions have equivalent values if x = 8.

Answers

Answer:

grinliest?? oh... i cant smile really, sry

Step-by-step explanation:

Please help me please thank you

Answers

you divide by 3 each time

the answer is Y= 3x because you multiply Y with 3

what is 3/4 divided by 2/3 as a mixed number?

Answers

Answer:

1.125

Step-by-step explanation:

3/4 / 2/3 when you divide numbers you can flip the second fraction and instead of divide multiply so it will look like this 3/4 x 3/2 so you can now just multiply them which equals= 9/8

A certain bakery sells two sizes of round cakes. The radius of the large cake is 3 times the radius of the small cake. If the top of the large cake has an area of 261 in?, what is the area of the top of the small cake?​

Answers

Let R be the radius of the large cake.
R x R x π = 261
R² = 83.078
R = 9.11

Small cake radius = 9.11/3
small cake radius = 3.038

Area of small cake = 3.038 x 3.038 x π
Area of small cake = 29 in²

cual es la raíz cuadrada de 8​

Answers

Answer:

2.8284

Step-by-step explanation:

Answer this for brainliest

Answers

Answer:

A D AND C

Step-by-step explanation:

(someone help)

Andre is running in an 80-meter hurdle race. There are 8 equally-spaced hurdles on the race track. The first hurdle is 12 meters from the start line and the last hurdle is 15.5 meters from the finish line. How far are the hurdles from one another?

Answers

Answer:

600 and 3

Step-by-step explanation:

A cylinder has a radius of 12.2 inches and a height of 6.1 inches.

What is the approximate volume of the cylinder?

Use 3.14 for pi.

Answers

Answer

2850.9 inch³

Step-by-step explanation:

V= πr²h

V (Volume) = 3.14 × 12.2 × 12.2 × 6.1 = 2850.9

hope it helps

3x - 5 = 1 what is the value of x​

Answers

Answer:2

Step-by-step explanation:

Which equation has the solution n = 11?

7n − 8 = 62

8n + 6 = 102

3n + 12 = 45

5n − 20 = 25

Answers

Answer:

3n+12=45

Step-by-step explanation:

Because if you take 2 and put it in the place of n 32+12 =45 and take 45 and divide it by 12 and you will get 11.

A bag holds 2 red and 7 blue marbles. What is the probability of the complement of randomly selecting a red marble?

Answers

Answer:

2 out of 9 percent of grabbing one of the red balls

Step-by-step explanation:

Answer:

2:7

Step-by-step explanation:

Expand and simplify (x + 3)(x - 1)

Answers

I hope it helps you ❤️❤️❤️❤️

Rewrite the fraction as a decimal. 82/5

Answers

Answer:

16.4

Step-by-step explanation:

80/5 = 16

2/5 = 0.4

16 + 0.4 = 16.4

what is 1/2 divided by 1/6?

Answers

Answer:

3

Step-by-step explanation:

1/2 ÷ 1/6

flip to 1/2 x 6 = 3

Answer:

well on calculator wise it is 0.0833333333 but you can just put 0.083 and put a line on top of the three (the line tells u it has a lot of the same number so u don't have to write all those threes) :))))

Step-by-step explanation:

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