MATHEMATICS MIDDLE SCHOOL

Consider this equation. 5 8 x = 1 2 x + 2 Generate a plan to solve for the variable. Describe the steps you'll use.

Answers

Answer 1

Answer:

58x = 12x + 2

58x -12x = 2

46x = 2

x = 2/46 = 0.434

How Equations are Used in Real Life?

There are many situations in which equations can be used. Whenever an unknown quantity has to be found, an equation can be formed and solved.

What is an Equation?

An equality relationship between two expressions written on both sides of the equal to sign.

Learn more about Equation here

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Answer 2

Answer:

Answer:

Sample Response: The goal is to get x alone on one side of the equals sign. First, isolate the variable by applying the subtraction property of equality to subtract 1/2x from both sides. Next, find a common denominator to combine like terms. Then use inverse operations to multiply both sides by the reciprocal of the fraction coefficient. The result will be x = 16. Finally, check the solution by substituting 16 for x in the original equation.

Step-by-step explanation:

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Find the reciprocal of 11/3

Answers

The reciprocal of any number is just '1' divided by the number. The reciprocal of a fraction is just flip-it-over. The reciprocal of 11/3 is 3/11 .

The reciprocal of $(11)/(3)$ is $(3)/(11)$

The length of rectangle is 7.1 cm and breadth 2.5 cm what is the area of rectangle

Answers

Step-by-step explanation:

$Area \: of \: rectangle \n = lenght * breadth \n = 7.1 * 2.5 \n = 17.75 \: {cm}^(2) \n$

Which two steps should be used first in solving the system of equationsby substitution?
6y - 4x = 22
y + 2x = 9
A. Multiply the first equation by 4 and the second equation by 2.
B. Solve the second equation for y and then substitute this value into the first
equation.
C. Subtract the terms in the second equation from the first equation and then
solve for y.
D. Substitute 9 for y in the first equation and then solve the other equation for x.

Answers

Answer:

The value of x , y using substitution method is 2 , 5

Step-by-step explanation:

Given as :

The two linear equation as

6 y - 4 x = 22 .......1

y + 2 x = 9

Let y = 9 - 2 x .......2

Now, using substitution method

Substitute the value of y from eq 2 into eq 1

i.e 6 × (9 - 2 x) - 4 x = 22

Or, 54 - 12 x - 4 x = 22

Or, 12 x + 4 x = 54 - 22

Or, 16 x = 32

∴ x = $(32)/(16)$

i.e x = 2

Now, Put the value of x into eq 2

∴ y = 9 - 2 x

So, y = 9 - 2 × 2

Or, y = 9 - 4

i.e y = 5

So, The value of x , y = 2 , 5

Hence, The value of x , y using substitution method is 2 , 5 Answer

Answer:

first step : option B

second step : option D

Step-by-step explanation:

first, Solve the second equation for y and then substitute this value into the first equation.

after this, you will get the value of y then substitute this value in of the equations to get x.

so, option B will be the first step to solve and option D is the second step.

the other two steps are wrong.

this is a standard way to solve any 2 given equations with 2 variables.

(Pts: 1) Please help me! Question is in attachment!

Answers

- - Solve:

To find the volume of a sphere:
$(4)/(3) *3.14*R^3$

3.14≈π

Now since its telling us to use π, then we do our formula by multiplying by π.

π=3.14 (Approximate amount)

So:

$4/3*3.14*9^3=3052.08$

So you are correct.

When Radius=9, you plug in for R. :)

Yes your answer is correct.
9 = R , for radious
Sphere Formula = s = 4, Pi r powered by 2 , volume below :

Volume of a sphere = V = (4/3)x(3.14)x(r^3)

now we have to multiply by pi = 3.14 which gets us
3052.08 | in powered by 3

so again yes you were right

The glass is filled 2 inches from the top how many cubic inches of water is inside the glass Round the answer to the nearest 10th
The hight Of the cylinder is 12in and radius is 6in