MATHEMATICS HIGH SCHOOL

Complete the equation.

4 • 48 = (4 • 40) + (4 • ?)

Please help!

Answers

Answer 1
Answer: 4 • 48 = (4 • 40) + (4 • 8)

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12.75x+250=18.25x74
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Answer:

X = 4402/51 = 86.31

Step-by-step explanation:

Which is a solution to the equation?(x −2)(x + 5) = 18

x = −10
x = −7
x = −4
x = −2

Answers

If you would like to know the solution to the equation (x - 2) * (x + 5) = 18, you can calculate this using the following steps:

(x - 2) * (x + 5) = 18
x^2 + 5x - 2x - 10 = 18
x^2 + 3x - 28 = 0
(x + 7) * (x - 4) = 0
1. x = - 7
2. x = 4

The correct result would be x = - 7.

The solutions to the equation are x = - 7 and x = 4

What are equation solutions?

Equation solutions are the true values of x in the equation

The equation is given as:

(x - 2)(x + 5) = 18

Expand the equation

x^2 + 5x - 2x - 10 = 18

Subtract 18 from both sides

x^2 + 3x - 28 = 0

Factorize the expression

(x + 7) * (x - 4) = 0

Solve for x

x = - 7 and x = 4

Hence, the solutions to the equation are x = - 7 and x = 4

Read more about quadratic equations at:

brainly.com/question/8649555

-2(x + 2) > 3

“With a step-by-step explanation be specific”

Answers

Answer:

x < - 7/2    (it's 7 over 2 not 7 divided by 2)

Step-by-step explanation:

The picture is the graph

The sum of two numbers is twenty. Three times the smaller is equal to twotimes the larger. Find the two numbers.

Answers

the smaller number is 8, and the larger number is 12, and they indeed add up to 20, and three times the smaller number (3 * 8) is equal to two times the larger number (2 * 12).

Let's call the two numbers x and y, with x being the smaller number and y being the larger number.

We have two pieces of information from the problem:

1. The sum of the two numbers is twenty:

  x + y = 20

2. Three times the smaller number is equal to two times the larger number:

  3x = 2y

Now, we can solve this system of linear equations.

First, we can solve equation (1) for x:

x = 20 - y

Now, substitute this expression for x into equation (2):

3(20 - y) = 2y

Now, distribute the 3 on the left side:

60 - 3y = 2y

Now, isolate the variables on one side of the equation and constants on the other side:

60 = 2y + 3y

Combine like terms:

60 = 5y

Now, divide by 5 to solve for y:

y = 60 / 5

y = 12

Now that we have found the value of y, we can substitute it back into equation (1) to find x:

x + 12 = 20

Subtract 12 from both sides:

x = 20 - 12

x = 8

So, the two numbers are:

x = 8 (smaller number)

y = 12 (larger number)

Therefore, the smaller number is 8, and the larger number is 12, and they indeed add up to 20, and three times the smaller number (3 * 8) is equal to two times the larger number (2 * 12).

To know more about number:

brainly.com/question/35412465

#SPJ3

Answer:

The smaller number is 8

The larger number is 12

Step-by-step explanation:

Let the smaller number be x

Let the larger number be y

Translate the question and solve ;

x +y = 20\n3(x) =2(y) \n\n\begin{bmatrix}x+y=20\n 3x=2y\end{bmatrix}\n\n\mathrm{Isolate}\:x\:\mathrm{for}\:x+y=20:\quad x=20-y\n\n\mathrm{Subsititute\:}x=20-y\n\n\begin{bmatrix}3\left(20-y\right)=2y\end{bmatrix}\n\n\mathrm{Isolate}\:y\:\mathrm{for}\:3\left(20-y\right)=2y:\quad y=12\n\n\mathrm{For\:}x=20-y\n\n\mathrm{Subsititute\:}y=12\n\nx=20-12\n\nSimplify\n\nx =8\n\nx=8,\:y=12

Solve the equation -1/3m-7=5

Answers


The Equation:                 -1/3 m - 7 =  5

Please watch me closely.

Add  7  to each side:       -1/3 m      = 12

Multiply each side by  3 :    -1 m      = 36

Multiply each side by  -1 :       m      = -36

If x is a number that is 7 more than y, how do you express x as a function of y?A. x = f(y) = 7 + x
B. x = f(y) = 7 + y
C. y = f(x) = 7x
D. y = f(x) = y – 7
E. y = f(x) = 7 + y

Answers

I believe the correct answer from the choices listed above is option B. The variable y is the independent variable here and x is the dependent variable so the function can be represented as f(y). The function should be written as:

x = f(y) = 7 + y
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