Marsha gave the cashier $20 to pay for 3 pairs of socks. The cashier gave her $5.03 in change. Each pair of socks cost the same amount.

What is the cost in dollars and cents for each pair of socks?

$8.34

$6.67

$4.99

$25.03

PLEASE HELP‼️ AND SHOW WORK‼️

Answer:

=2a

Step-by-step explanation:

a-2/5a and a+2/5a cancel each other out and your left with a+a aka 2a

Answer:

Step-by-step explanation:

x^2+2x-9=15

x^2+2x=24

x^2+2x+1=24+1

(because what you do to one side you do to the other) ^

(x+1)^2=25

(x+1)^2 -25=0

(25 is a perfect square)

(x+1-5)(x+1+5)

(x-4)(x+6)

x=4,-6

Answer: x=-6; x=4

Step-by-step explanation:

Answer:

Simplifies to:

748.245949x

To rewrite f(x) = x^2 - 6x - 60 by completing the square, you add and subtract (6/2)^2 within the equation and refactor to get f(x) = (x - 3)^2 - 69, with the vertex at (3, -69).

To rewrite the function f(x) = x^2 - 6x - 60 by completing the square, follow these steps:

The function is now in the completed square form. The vertex of this parabola is at (3, -69).

Answer:

8y^3 + 6y^2 - 29y + 15

Step-by-step explanation:

8y^3 + 12y^2 - 20y - 6y^2 - 9y + 15

then

8y^3 + 6y^2 - 29y + 15 is the product

Best regards

Answer:

=8y^3+6y^2−29y+15

Step-by-step explanation:

(4y−3)(2y^2+3y−5)

=(4y+−3)(2y^2+3y+−5)

=(4y)(2y^2)+(4y)(3y)+(4y)(−5)+(−3)(2y^2)+(−3)(3y)+(−3)(−5)

=8y^3+12y^2−20^y−6y^2−9y+15

=8y^3+6y^2−29y+15

Answer:

Step-by-step explanation:

The formula of a distance between two points:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

From the graph we have the points A(2, 2) and B(-6, 4). Substitute:

[tex]AB=\sqrt{(-6-2)^2+(4-2)^2}=\sqrt{(-8)^2+2^2}=\sqrt{64+4}=\sqrt{68}[/tex]

[tex]AB\approx8.25[/tex]

it went to the right 4 units and up 2 units

Answer:

7/12 - 1/12 = 6/12

Step-by-step explanation:

Answer:

The answer should be 6/12 or 1/2

Answer:

8

Step-by-step explanation:

Answer:

x=6.7

Step-by-step explanation:

What you have to do is you have to eliminate y. So you need to make y cancel each other out.

2x+2y=17. I can multiply 2 to the second equation to cancel the y's out.

8x-2y=50.

10x=67.

x=67/10 or 6.7.

The value of x for the system of equations will be x=6.7.

A set of simultaneous equations is a finite set of equations for which common solutions are sought in mathematics. It is also known as a system of equations or an equation system.

Given that the two equations are 2x + 2y = 17 and 4x - y = 25. The value of x will be calculated by eliminating the variable y from the equation.

Multiply the second equation by 2 and subtract from the first equation,

2x+2y=17.

8x-2y=50.

10x=67.

x= 67/10

x = 6.7.

Therefore, the value of x for the system of equations will be x=6.7.

To know more about the system of equations follow

https://brainly.com/question/25976025

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[tex]\huge\boxed{22:7}\ \huge\boxed{29:22}[/tex]

First, we need to find the number of yellow pencils in the basket. We'll represent the number of green pencils with [tex]g[/tex] and the number of yellow pencils with [tex]y[/tex].

[tex]\begin{aligned}7+y&=29&&\smash{\Big|}&&\text{Start with what we already know.}\\y&=22&&\smash{\Big|}&&\text{Subtract 7 from both sides.}\end{aligned}[/tex]

Our first ratio is [tex]y:g[/tex], or [tex]\boxed{22:7}[/tex].

The second ratio is [tex](g+y):y[/tex]:

[tex]\begin{aligned}(g+y)&:y\\(7+22)&:22\\29&:22\end{aligned}[/tex]

Answer:

m= -5/4

Step-by-step explanation:

Slope can be translated to "rise over run". You go down 5 spaces and then move over 4 spaces.

Answer:

  28

Step-by-step explanation:

It is often convenient to compute the Least Common Multiple (LCM) as the product of the numbers divided by their greatest common factor. In this case, that would be ...

  LCM = (14 × 4)/2 = 28

___

As a check, you can do it by looking at the prime factors of these numbers. The LCM will be the product of the unique factors to their highest powers.

  14 = 2·7

  4 = 2^2

Unique factors are 2 and 7. The highest power of 2 is 2; the highest power of 7 is 1.

  LCM = 2^2·7 = 28

Start by setting up a factor tree for 4 and 14.

4 factors as 2 ·  2 and 14 factors as 7 · 2.

When finding the least common multiple, we're looking for factors that match up and here we have a pair of 2's that matches up.

So our least common multiple is 2 from the 2's that match up × the the 2 that doesn't match up x the 7 from the 7 that doesn't match up.

So we have 2 × 2 × 7 or 4 × 7 which is 28.

On my whiteboard, I have attached my factor tree.

Answer:

[tex]\large\boxed{\dfrac{7-x}{x-7}=-1}[/tex]

Step-by-step explanation:

[tex]\dfrac{7-x}{x-7}=\dfrac{-(x-7)}{x-7}\\\\\text{cancel}\ (x-t)\\\\\dfrac{7-x}{x-7}=\dfrac{-1}{1}\\\\\dfrac{7-x}{x-7}=-1[/tex]

Answer:

-1

Step-By Step:

The Answer on Ed

Answer:

B

Step-by-step explanation:

For each box, there is 1 defective lightbulb. Therefore, a delivery of 4 boxes will have 4 defective lightbulbs. A delivery of 2 boxes has 2 defective lightbulbs. 4 defective lightbulbs subtracted by 2 defective lightbulbs equals 2 more defective lightbulbs in 4 boxes than 2. Therefore, it is B.

Answer:

True

Step-by-step explanation:

It was correct on my quiz

Answer:

(2z - 3)(15z - 4)

Step-by-step explanation:

To factor the quadratic

Consider the factors of the product of the coefficient of the z² term and the constant term which sum to give the coefficient of the z- term

product = 30 × 12 = 360 and sum = - 53

The factors are - 45 and - 8

Use these factors to split the z- term

30z² - 45z - 8z + 12 ( factor the first/second and third/fourth terms )

= 15z(2z - 3) - 4(2z - 3) ← factor out (2z - 3)

= (2z - 3)(15z - 4) ← in factored form

answer: 11

explanation: just plug in -2 for x. the new problem becomes 5(-2)^2 - 9. Negative two squared is 4. 5 times 4 is 20. 20 minus 9 is 11.

Final answer:

When evaluating the expression 5x^2 - 9 for x = -2, we substitute -2 into the expression and find that the value is 11.

Explanation:

To evaluate the expression 5x2 − 9 when x = −2, we first substitute the value of x into the expression and then perform the calculation:

5(−2)2 − 9
→ 5(4) − 9
→ 20 − 9
→ 11

Therefore, when x = −2, the value of the expression 5x2 − 9 is 11.

Answer:

y= 3      

  --- X +1

   4

Step-by-step explanation:

-4y=-3x-12+8

-4y=-3x+4

---      ---  -

4        4    4

y= 3      

  --- X +1

   4

The expressions that illustrate the commutative property are: A, D, E, and F (see attachment below).

Therefore, the expressions that illustrate the commutative property are: A, D, E, and F (see attachment below).

Learn more about commutative property on:

https://brainly.com/question/2475734

Answer:

12.5

Step-by-step explanation:

25/200

Answer:

50

Step-by-step explanation:

0.25 x 200 = 50

Answer:

A

Step-by-step explanation:

Parallel lines have the same slope. Find the slope by converting the equation x + 5y = 10 into y = mx+b form. It becomes y = -1/5x + 2. The slope is -1/5.

Substitute -1/5 and the point (1,3) into the point slope form.

[tex]y - y_1 = m(x-x_1)\\y - 3 = -\frac{1}{5}(x - 1)\\y - 3 = -\frac{1}{5}x + \frac{1}{5}\\y = -\frac{1}{5}x + \frac{16}{5}[/tex]

Answer:

It's aaaaaaaaaaaaaaaaaaaaaaa!!!

Step-by-step explanation:

Answer:

x       y

15     -1

12     0

9       1

6       2

3       3

0       4

Step-by-step explanation:

This is a function table. For a linear function, find the average rate of change between the listed points called slope. Then use the slope to fill in other inputs and outputs for the function.

[tex]m = \frac{y_2-y_1}{x_2-x_1}=\frac{4-0}{0-12} =\frac{4}{-12} =- \frac{1}{3}[/tex]

This means for every 3 units made in the input, the function moves down 1 output.

x       y

15     -1

12     0

9       1

6       2

3       3

0       4

Answer:

b) f(x) has no x^2 term

Step-by-step explanation:

The general form of a linear function is:

f(x) = ax + b

Where a and b are constant terms and x is the variable.

Option a:

This statement may or may not be true. We can have a linear function with no constant term for example f(x) = 5x is a linear function with no constant and f(x) = 5x + 5 is a linear function with a constant term. So option a cannot be the answer

Option b:

This statement is true for a linear function. x^2 term can be found in quadratic and higher degree polynomials. In linear function the power of variable must be 1.

Option c:

The function can have terms with coefficients other than 1 e.g f(x) = 5x + 5. So this is not true either

Option d:

f(x) must have x term. So this option is also not correct.

Therefore, the correct answer is option b.

Answer:

The correct statement is (b) which is f(x) has no [tex]x^2[/tex] term

Explanation:

The graph of a linear equation is a straight line. The general form of a linear equation is

ax + by + c = 0

Here, the coefficients a and b can't be zero simultaneously.

The term 'c' is a constant and can be zero.

We can see that the exponent on each variable x and y is 1. So, if the exponent in any variable is not 1 then that will not be a linear equation.

Other than this, the coefficients a and b can be zero at a time.

Therefore, on the basis of these facts, we can conclude that the necessary condition for an equation is to be a linear equation is " it should not have any [tex]x^2[/tex] term"

If we have [tex]x^2[/tex] in our equation then it will be a quadratic equation.

Therefore, option b is correct.

Further Explanation:

Any function which is in the form ax+by+c=0 is called a linear function.

Linear function always represents a straight line.

The slope intercept form of a line is [tex]y=mx+b[/tex]. Here, m is the slope and b is the y-intercept.

The formula for slope of a straight is given by

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

Learn more:

https://brainly.com/question/6108704 (Answered by  SociometricStar)

https://brainly.com/question/7876025 (Answered by Calculista)

Keywords:

Answer:

y+4=-3/2(x-2) is the answer

Step-by-step explanation:

Again over here just use the y=mx+c

m which is the slope is change in y over change in x which in this case is [tex]\frac{-3}{2}[/tex] so which just that we can cross out the first option for the answer secondly to be able to find C just take literally any point from the graphed line, for instance we take (-2,2), just add it in the equation and solve for C

[tex]2=-\frac{3}{2}(-2)+c\\2=3+c\\0=3-2+c\\c=-1[/tex]

y=-3/2-1

Now all you have to see is which of the three equations is equivalent to the one we just found

y+4=-3/2(x-2) is the answer :)

Answer:

c=9

Step-by-step explanation:

7(c - 12)= -21

Divide each side by 7

7/7(c - 12)= -21/7

c-12=-3

Add 12 to each side

c-12+12 = -3+12

c = 9

Answer: c = 9

Step-by-step explanation:

7(c - 12)= -21

Divide each side by 7

7/7(c - 12)= -21/7

c-12=-3

Add 12 to each side

c-12+12 = -3+12

c = 9  ← Answer

* Hopefully this helps:) Mark me the brainliest:)!!

Answer:

A. t < –15

Step-by-step explanation:

The temperature has to be less than -15

t < -15

Final answer:

In mathematics, to find out how many times 3 goes into 100, we divide 100 by 3, resulting in 33 times with a remainder of 1.

Explanation:

The question posed is concerned with division, which falls under the subject area of mathematics. When we consider how many times 3 goes into 100, we are calculating the number of times the number 3 can be subtracted from 100 until we reach zero or a number less than 3. To solve this problem, we use division.

To divide 100 by 3, you would start by seeing how many groups of 3 are in 100. Performing the division gives us 33 with a remainder of 1, which means that 3 goes into 100 a total of 33 times with 1 left over. Therefore the quotient (the result of division) is 33 and the remainder is 1.

The concept being described in the reference material, which mentions exponents and their use to indicate repeated multiplication of a base number, is not directly related to this question, hence it will not be incorporated in the calculation of the division of 3 into 100.

Answer:

[tex]h = 227\ ft[/tex]

Step-by-step explanation:

We know that the equation that models the height of a projectile as a function of time is:

[tex]h(t) = -16t ^ 2 +v_0t +h_0[/tex]

Where:

[tex]v_0[/tex] is the initial velocity

[tex]h_0[/tex] is the initial height of the projectile.

In our case, the height of the machine is 2 ft.

Then [tex]h_0 = 2\ ft[/tex]

The initial speed is 120 ft/s.

So the equation of the height for this case is:

[tex]h(t) = -16t ^ 2 + 120t + 2[/tex]

This is a quadratic equation whose main coefficient is negative.

The maximum value of the function is at its vertex.

For a quadratic function of the form:

[tex]at ^ 2 + bt + c[/tex]

the vertex of the equation is given by the expression:

[tex]x =\frac{-b}{2a}[/tex]

[tex]y = f(\frac{-b}{2a})[/tex]

In this case:

[tex]a = -16\\b = 120\\c = 2[/tex]

Then the maximum point occurs instantly:

[tex]t = -\frac{120}{2(-16)}\\\\t = 3.75\ s[/tex]

Finally the maximum atura is:

[tex]h(3.75) = -16(3.75) ^ 2 +120(3.75) + 2[/tex]

[tex]h = 227\ ft[/tex]