2
Select the correct answer.
Simplify the following expression.

Answer:

solve for x in the second equation is correct

Step-by-step explanation:

Here is the complete question

Which first step for solving the given system using substitution results in an equation without fractions?

(2x+6y=7

(6x + 18y = 24.... 2

Solve for x in the first equation,

Solve for y in the first equation,

Solve for x in the second equation

The best equation to she will be equation 2 since all the coefficients are end numbers

Let us make x t subject f the formula from equation 2;

From 2: 6x+18y = 24

Subtract 18y from both sides

6x+18y-18y = 24-18y

6x = 24-18y

Divide through by 6

6x/6 = 24/6 - 18y/6

x = 4-3y.

You can see that the resulting expression of x is not a fraction. Hence solve for x in the second equation is correct

Answer:

b

Step-by-step explanation:

edit:

the one after that is b

A= 1

B= 2

C= below

Answer:

The answer is at the bottom!!

Step-by-step explanation:

Another word for finding the opposite of an integer is negative number of an integer.

Decrease, spend, and decline are examples of words that mean negative. An integer is any positive whole number or its opposite. Here, opposite means sign. So a positive integer has a negative opposite and vice versa.

Hope this helps!!

Answer:

42 + 26 = 68

Step-by-step explanation:

I hope this helped :)

Answer:

Step-by-step explanation:

2x6 + x3 - x5 - 4x3

Solving like terms

2x6 - x5 - 3x3

Option B is the correct answer

Answer:

so u put the first point at -1 go down 2 to the right 1

The graph of equation y = - 2x - 1 and the y-intercept (0, - 1) is shown in image.

We have to given that,

To plot the equation y = - 2x - 1 and the y-intercept on the graph.

Since, The equation of line in slope intercept form is,

y = mx + c

Where, m is slope and c in y - intercept.

Here, Equation is,

y = - 2x - 1

After comparing,

y - intercept = - 1

So, y - intercept of equation (0, - 1)

Learn more about the equation of line visit:

https://brainly.com/question/18831322

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Answer:

8  3/4 is your answer  

Step-by-step explanation:

If you want to multiply in a simplier form convert into decimals

2.5*3.5= 8.75 = improper fraction form its  8*4+3=35/4= 8 3/4

pls give brainliest i need two more and i level up and hope this helps

Answer:

The answer is 8.75

Step-by-step explanation:

First make 2 1/2 and 3 1/2 to improper fraction.

5/2 * 7/2= 35/4

After you multiplied you make you answer into a mixed number fraction by

dividing the  numerator and denominator. 35/4=8.75

Answer:8.75

Hope this helps!!

Answer:

$79.7468

Step-by-step explanation:

6.4% of 74.95 is 4.7968, since 6.4 * 74.95 is 479.68, and if you divide that by 100, you will get 4.7968. 4.7968 + 74.95 = $79.7468

Here we want to find the total cost of a coat given that we know its cost and the sales tax.

By working with percentages, we will find that the total cost will be $79.75

So the cost of the coat is $74.95, and then we must pay an extra 6.4%

Then we must pay a total of the 100% + 6.4% = 106.4%

And the 100% is equivalent to $74.95

Then the 106.4% is equivalent to:

(106.4%/100%)$74.95 = $79.75

So the total cost of the coat is $79.75

If you want to learn more about percentages, you can read:

https://brainly.com/question/843074

Answer:

B: 250

Y: Total cost

M:50

X: Hours renting

Equation: y=50x+250

Answer:

564cvbfgrg

Step-by-step explanation:

Answer:

same. me too❤

Answer:

[tex]38 x = 54[/tex]

Step-by-step explanation:

Required

Determine the number of 38 in 54

We start by representing the number of 38 in 54 with x

To determine the number of 38 in 54, we have to represented it as thus:

[tex]38 * x = 54[/tex]

Simplify the expression as follows:

[tex]38 x = 54[/tex]

The expression can be left like that or simplified further by dividing through by 2:

[tex]19x = 27[/tex]

Hence, the solution to the question is:

[tex]19x = 27[/tex] or [tex]38 x = 54[/tex]

Step-by-step explanation:

The question implies the two angles are equal because of the positioning of the named vertices. m∠A = m∠E so to say.

You can substitute the values and solve the inequality to find x, then solve for m∠A.

m∠A = m∠E; Given (Inferred)

6x - 8 = 4x + 1; Substitution

6x = 4x + 9; Addition Property of Equality

2x = 9; Subtraction Property of Equality

x = 4.5; Division Property of Equality

m∠A = 6x - 8; Given

m∠A = 6(4.5) - 8; Substitution

m∠A = 19; Solve

Hope this helps!!

Answer:

2

Step-by-step explanation:

We can find the slope using the formula

m = ( y2-y1)/(x2-x1)

   = ( 5-1)/( -1 - -3)

   = ( 5-1)/( -1+3)

   = 4/2

   = 2

Answer: 2

Step-by-step explanation:

( y2-y1)/(x2-x1)

  = ( 5-1)/( -1 - -3) =  ( 5-1)/( -1+3) = 4/2  = 2

Answer:

[tex]\pm 3[/tex]

Step-by-step explanation:

Take the square root.

Answer:

81

9 x 9 = 81

Therefore the square of a number equal to 9 is 81

May I have brainliest please? :)

Answer:

B. The answer is B

Step-by-step explanation:

Answer: Timothy will have $1,920 at the end of 4 years.

Step-by-step explanation: Remember, I=prt. So multiply 12,000x0.04x4. The final answer is $1,920.

Answer:

$1920

Step-by-step explanation:

He starts with 12,000 dollars. If he makes 4 percent of that, he is making 480 dollars every year. So you know how much he is making every year, you need to know what he is making in 4 years. 480 * 4 = 1920

Answer:

18.8 ft

20.8 ft

Step-by-step explanation:

Given that :

Dimension of rectangular patio:

13 feets * 15 feets

To double the area of The patio :

2 * initial. Area

Initial Area = area of rectangle = Length * width

Initial area = 13 * 15 = 195ft²

New area of patio = 2 * 195 ft² = 390 ft²

To obtain the new area, the length and width of patio increased in equal amount:

Let the Increment = x

Hence,

(length + x) * (width + x) = 390

(13 + x) * (15 + x) = 390

195 + 13x + 15x + x² = 390

195 + 13x + 15x + x² - 390 = 0

x² + 28x - 195 = 0

Using the quadratic equation solver to save computation time :

The roots are :

X = - 33.773 or 5.773

Dimension can't be negative, hence,

x = 5.773

New dimension :

(length + x) = 13 + 5.773 = 18.8 ft

(width + x) = 15 + 5.773 = 20.8 ft

Answer:

Answer B or 1,050

Step-by-step explanation:

This is based of what someone is saying so there

Answer:

b

Step-by-step explanation:

Answer:

y = -3x - 2

Step-by-step explanation:

Equation of a line passing through [tex](x_1,y_1)[/tex] and slope m is,

[tex]y-y_1=m(x-x_1)[/tex]

Slope of a line passing through [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is,

Slope = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

Slope of the line passing through (0, -2) and (1, -5) will be,

Slope = [tex]\frac{-2+5}{0-1}[/tex]

m = - 3

Therefore, equation of the line passing through (0, -2) and slope = -3 will be,

y + 2 = -3(x - 0)

y + 2 = -3x

y = -3x - 2

Answer:

Step-by-step explanation:

Step one:

given data

the total amount of ounces= 97.5 ounces

we are told that the capacity of one bottle is 7.5 ounce

this means that they can actually fill up 97.5/7.5= 13 bottles

Step two:

We are told that one bottle was sold for $4.5

Hence they will sell 13 bottles for 13*4.5= $58.5

Answer:

50 = x · 3.75

Step-by-step explanation:

Answer:

[tex]\frac{73}{36}[/tex]

Step-by-step explanation:

[tex]\frac{3}{4}[/tex] - [tex]\frac{2}{9}[/tex] + [tex]\frac{3}{2}[/tex]

1. Convert all the fractions to a common denominator.

For this problem, the common denominator will be 36

[tex]\frac{3}{4}[/tex] * 9 = [tex]\frac{27}{36}[/tex]

[tex]\frac{2}{9}[/tex] * 4 = [tex]\frac{8}{36}[/tex]

[tex]\frac{3}{2}[/tex] * 18 = [tex]\frac{54}{36}[/tex]

2. Substitute the values back into the equation, and solve

[tex]\frac{3}{4}[/tex] - [tex]\frac{2}{9}[/tex] + [tex]\frac{3}{2}[/tex]

= [tex]\frac{27}{36}[/tex] - [tex]\frac{8}{36}[/tex] + [tex]\frac{54}{36}[/tex]

= [tex]\frac{19}{36}[/tex] + [tex]\frac{54}{36}[/tex]

= [tex]\frac{73}{36}[/tex]

Answer:

Step-by-step explanation:

Answer:

[tex]Width = a^2 + 2a - 3[/tex]

Step-by-step explanation:

Given

[tex]Area = 5a^4 + 10a^3 - 15a^2[/tex]

[tex]Length = 5a^2[/tex]

Required

Determine the Width

The area of a rectangle is calculated using:

[tex]Area= Length * Width[/tex]

Make Width the subject

[tex]Width = \frac{Area}{Length}[/tex]

Substitute values for Area and Length

[tex]Width = \frac{5a^4 + 10a^3 - 15a^2}{5a^2}[/tex]

Factorize the numerator

[tex]Width = \frac{5a^2(a^2 + 2a - 3)}{5a^2}[/tex]

[tex]Width = a^2 + 2a - 3[/tex]

Hence, the polynomial for the width of the rectangle is:

[tex]Width = a^2 + 2a - 3[/tex]

Answer:

nntjntbntntbt

Step-by-step explanation:

Answer:

answer below  

Step-by-step explanation

128-B

Answer: 111.11 seconds

Step-by-step explanation:

Given: The period of a pendulum is the time the pendulum takes to swing back and forth

The function relates the length [tex]L= 0.81t[/tex] in feet of a pendulum to the time t in seconds that it takes to swing back and forth.

If L= 90 feet then put this in the above function, we get

[tex]90=0.81t\\\\\Rightarrow\ t=\dfrac{90}{0.81}\\\\\Rightarrow\ t=111.1111111\approx111.11\text{ seconds}[/tex]

Hence,  the period = 111.11 seconds

Answer:

The total cost of the games (play package)

= 15x - 5

Step-by-step explanation:

Number of tokens in the games = 15

The cost per token = x

Discount off the total cost = $5

Therefore, the cost of the play package = 15x - 5

where x is in dollars

However, ‘x’ can also assume any value.

Check:

If x = $15

The total cost of the game can be said to be 15(10) - 5 = $220

Answer:

16 negative tiles are split into 2 groups of 8 negative tiles.

Negative 16 divided by 3

Negative 16 divided by 2

Negative 8 divided by 8

Negative 8 divided by 2

Step-by-step explanation: