PLS HELP!!!!!!!!!!!!! math related

A: you're finding the area where he needs carpet so you do 30x20 and 10x10 and then add those together B: you're seeing how much it would cost to carpet the bedroom so you take the answer from problem A and multiply it by 3

The solution of the given equations is x = 0, y=9. The value of x and y will satisfy the given equations.

What is an equation?

A mathematical statement made up of two expressions joined by an equal sign is known as an equation. 3x - 5 = 16 is an example of an equation. We get the value of the variable x as x = 7 after solving this equation.

Given a system of equations is

5y+30x=45  ........(i)

6y-x=54   .......(ii)

Applying the elimination method to solve the equations.

Multiply equation (ii) by 30 and with equation (i):

5y     + 30x=45

180y - 30x = 1620

_______________

185y           = 1665

Divide both sides by 185:

y = 1665/185

y = 9

Putting y = 9 in equation (ii)

6×9-x=54

54 - x = 54

-x = 54 - 54

x = 0

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Answer:

Can't be answered, as written.

Step-by-step explanation:

Please check the equations.  As written, they are the same:

y=2x-4 and 6x-3y=12

The second, 6x-3y=12, can be rewritten:

-3y = -6x + 12

y = 2x - 4   is the same as the first equation.

========

I'll do an example based on a different first equation.  Let's try:

y = 4x-4 and 6x-3y=12

There are two equations and 2 unknowns.  We can solve this in either of two ways:  Mathematically and Graphically.  Let's try both.

Mathematically.

Pick either equation and isolate one of the variables (x or y)

I'll chose the first, since the variable y is already isolated.  (the efficient approach)

y = 4x-4

Take the second equation and use the definition of y provided by the first equation in place of y is the second:

6x-3y = 12

6x-3(4x-4) = 12  [Substituted the value of y given in the first equation]

6x - 12x + 12 = 12

-6x=0

  x= 0

Use x = 0 in either equation to find y:

y = 4x-4

y=4*(0)-4

y = -4

The solution (where the lines intersect) is (0,-4)

We can also solve this graphically.  

Plot the two lines and look for their intersection.  The attached graph shows that to be (0,-4).

The factors of substitution are separating a polynomial into its component polynomials.

Factoring polynomials mean separating a polynomial into its constituent polynomials. Sometimes, when polynomials are particularly complicated, it is easiest to substitute a simple term and factor it down.

This is a quick technique to use with complicated polynomials, particularly if subsets of that polynomial repeat.

For example, we need to factorise (x − y)(x − y − 1) − 20

Let S = x − y. Then substituting S in for x − y for ease of computation, we get

(x − y)(x − y − 1) − 20​

= (S)(S − 1) − 20

= S² − S − 20

=(S − 5)(S + 4)

=(x − y − 5)(x − y + 4).

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A linear function to model the relationship between the number of days and the total cost of renting a mid-size car will be y = 40 + 45x

An equation simply has to do with the statement that illustrates the variables given. In this case, it is vital to note that two or more components are considered in order to be able to describe the scenario.

In this case, the cost is comprised of a fixed $40 administrative fee for the cleaning and maintenance of the car plus a rental cost of $45 per day.

The linear function to model the relationship between the number of days and the total cost of renting a mid-size car will be:

y = 40 + 45(x)

y = 40 + 45x

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Answer: b = 2 19/30  c = 3 13/30

Step-by-step explanation:

1 4/5 + 5/6

= 1 49/30

= 2 19/30

2 1/10 + 1 2/3

= 3 13/30

Answer:

b)

[tex]2 \times \frac{19}{30} [/tex]

c)

[tex]3 \times \frac{23}{30} [/tex]

Step-by-step explanation:

b)

x - 5/6 = 1 × 4/5

x - 5/6 = 9/5

x = 5/6 + 9/5

x = (25+54)/30

x = 79/30 (or 2×19/30)

c)

x - 2 × 1/10 = 1 × 2/3

x - 21/10 = 5/3

x = 21/10 + 5/3

x = (63+50)/30

x = 113/30 (or 3×23/30)

Answer:

88/24.       Mixed number: 3 16/24

Step-by-step explanation:

First, you want to find the LCM (Least Common Multiple) for the denominator. The LCM is 24. 24 divided by 4 is 6, so 6 x 5 is 30. 24 divided by 8 is 3, so 2 x 3 is 6. 24 divided by 6 is 4, so 4 x 13 is 52. All of the fractions’ denominators now have the same number, which makes it easier to add. So, 30/24 + 6/24 + 52/24 = 88/24. Your welcome :)

Answer:

this question has 3 answers according to decimal point your answer will be written as 3.67

According to mixed numbers your answer will be 3 written as whole number,2written as numerator and 3 written as denominator.

According to improper fraction your answer will be 11 written as numerator and 3 written as denominator

Latitude and longitude are two different measurements used to locate points on the Earth.

1. Latitude is the angular distance of a point north or south of the equator, measured in degrees. Longitude measures the angular distance east or west of the prime meridian, also measured in degrees.

2. Latitude is measured in a north-south direction, while longitude is measured in an east-west direction.

3. Latitude is the position of the point relative to the equator, while longitude is the position of the point relative to the prime meridian.

4. Latitude is also known as "parallels," while longitude is known as "meridians."

5. Latitude ranges from 0° to 90° North and 0° to 90° South, while longitude ranges from 0° to 180° East and 0° to 180° West.

Latitude and longitude are two different measurements used to locate points on the Earth. Latitude measures the angular distance north or south of the equator, while longitude measures the angular distance east or west of the prime meridian. Latitude is referred to as "parallels" and ranges from 0° to 90° North and 0° to 90° South, while longitude is known as "meridians" and ranges from 0° to 180° East and 0° to 180° West.

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Answer:

Step-by-step explanation:

b<11.3/4.3

The inverse of p v q →  p ∧ q is ~p v -q →-p ∧ ~q. hence option c is correct

What is mean by Inverse?

Opposite in order, nature or effect is called an Inverse.

Given that;

The statement is;

p → q

Now,

The inverse of p → q is written as;

~p → ~q

Thus, The inverse of p → q is ~p → ~q.

What is inverse in simple words?

something of a contrary nature or quality : opposite, reverse. : a proposition or theorem formed by contradicting both the subject and predicate or both the hypothesis and conclusion of a given proposition or theorem. the inverse of "if A then B" is "if not-A then not-B"

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When a set of eight cards were labeled with A, D, D, I, T, I, O, N. The sample space for choosing a card is

A sample space is a set or collection of potential outcomes from a random experiment.

The letter "S" stands for the sample space in a symbol. The term "events" refers to a subset of probable experiment results.

Depending on the experiment, a sample area could include a variety of results.

For the given problem, the sample space is A, D, D, I, T, I, O, N which is rearranged to be S = {A, D, D, I, I, N, O, T}

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The graph of linear equation y = 3x - 2 have a slope of 3 and y intercept of -2

An equation is an expression that shows the relationship between variables and numbers.

The linear equation is in the form:

y = mx + b

where m is the rate of change and b is the y intercept.

Given that the graph of y = 3x - 2 is shown. It passes through the point (0, -2) and (1, 1)

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Answer:

9.8

Step-by-step explanation:

Answer: 98 Times.

[tex]2450/25=98[/tex]

The difference between total revenue and total costs is: gross profit.

Every element of production has a total cost that, depending on whether it has fixed costs or variable costs, includes the total opportunity cost (benefits from the next-best alternative) of each factor. Marginal cost is the added sum of the costs resulting from adding one more unit of output. Total cost is the collective term for all costs associated with manufacturing, including both fixed and variable costs. The total cost, as used in economics, is the sum of all expenses incurred in the production of a good.

Revenue is the entire sum of money that a business receives for items sold or services rendered during a specific period of time. The direct expenses incurred during the manufacture of the products a business sells are known as the cost of goods sold.

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0.6×1.5=0.9 I know this answer come my home

Answer: 2

Step-by-step explanation:

6x - 7 - 2x + 4 = 13
4x - 3 = 13
4x = 13 + 3
4x = 16
x = 16/4
x = 4

=======================================================
10 - 2x is 10 - 2(4)
10 - 2(4)
= 10 - 8
= 2

Answer:

2

Step-by-step explanation:

Let's for solve for x:

Solve for x:

6 x - 2 x - 7 + 4 = 13

Grouping like terms, 6 x - 2 x - 7 + 4 = (6 x - 2 x) + (-7 + 4):

((6 x - 2 x) + (-7 + 4)) = 13

6 x - 2 x = 4 x:

4 x + (-7 + 4) = 13

4 - 7 = -3:

4 x + -3 = 13

Add 3 to both sides:

4 x + (3 - 3) = 3 + 13

3 - 3 = 0:

4 x = 13 + 3

13 + 3 = 16:

4 x = 16

Divide both sides of 4 x = 16 by 4:

(4 x)/4 = 16/4

4/4 = 1:

x = 16/4

The gcd of 16 and 4 is 4, so 16/4 = (4×4)/(4×1) = 4/4×4 = 4:

Answer:  x = 4

Plug in the numbers;

10 -2(4) = 2

By using the fact that the sum of the interior angles must be equal to 180°, we will find that the value of x is 18.

I assume you need problem 4 solved.

There we can see the triangle JKL, such that the angles are:

K = (5x - 5)°

L = (3x)°

J = 41°

Remember that the sum of the interior angles of any triangle is always equal to 180°, then we can write the linear equation:

(5x - 5)° + (3x)° + 41° = 180°

We can solve that linear equation for x (i will remove the degree symbol so it is easier to follow it)

(5x - 5) + 3x + 41 = 180

(5x + 3x) + (41 - 5) = 180

8x + 36 = 180

8x = 180 - 36

8x = 144

x = 144/8 = 18

That is the value of x.

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The value of x is 11.5.

Triangle ABC is a right-angle triangle.

We can apply the Pythagorean Theorem to get,

x² + 8² = 14²

We now solve for x to get,

⇒x² = 14² - 8²

The right-hand side is a difference of two squares, this factor gives us,

⇒x²  = (14 +8 )(14-8)         (using formula of a² -b²)

⇒x²  = 22 × 6

⇒ x² = 132

We take the positive square root of both sides to get,

x = [tex]\sqrt{132}[/tex]

⇒ x = 11.48

∴ x = 11.5 (  round to the nearest tenth)

So, the value of x is 11.5.

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The null hypothesis is H0: u = 447, the alternative hypothesis is given as: H1: u ≠ 447

A null hypothesis is a statement that there is no significant difference between two groups or no relationship between two variables. The alternative hypothesis, on the other hand, is the statement that there is a significant difference or relationship between the groups or variables.

In statistical hypothesis testing, we test the null hypothesis against an alternative hypothesis. If the data provides enough evidence against the null hypothesis, we can reject it in favor of the alternative hypothesis.

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Answer:

my personal guess is 45⁵

Step-by-step explanation:

9 times 5 is 45 and 2 plus 3 is 5

The 8th term of the given sequence is [tex]a_8= \frac{78125}{243}[/tex].

A unique kind of sequence is a geometric sequence. Every term in the series (aside from the first term) is multiplied by a fixed amount to determine the following term.

The given sequence 9, 15, 25, . . . is a geometric progression series. The common ratio of the given GP is:

[tex]r= \frac{15}{9} =\frac{5}{3}[/tex]

Now, the nth term of the geometric sequence can be found out using the following formula, where a is the first term of the given series:

[tex]a_n= ar^{n-1}\\\\a_8= 9(\frac{5}{3} )^{8-1}\\[/tex]

[tex]a_8= \frac{78125}{243}[/tex]

Hence the 8th term of the given geometric sequence is [tex]a_8= \frac{78125}{243}[/tex].

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Answer:

No solution.

Step-by-step explanation:

2y-8=6x

y=3x+2

--------------

2(3x+2)-8=6x

6x+4-8=6x

6x-4=6x

6x-6x=4

0=4

A formula is an expression that instructs the computer how to mathematically process a given value. Some of the formulas for class 6 as explained.

Algebra, decimals, ratios, proportions, geometry, and mensuration are just a few of the crucial Math formulas for Class 6 that students must adhere to.

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The mathematical mistake that Riley made is that She used the wrong common denominator.

A common denominator is a factor that all of the fractions in the set of equations have in common.

Thus, the appropriate response is:

(2(2x² - 6x + 9))/((x-3) (x-2) (x+3))

See the steps in the proper order below:

Step 1: The expression is as follows:

(x/(x-3)(x-2)) + (3/(x+3))

Locate the common denominator in step 2 and rewrite the formula so that the numerators are higher than the common denominators.

Thus, we have:  (x (x+3) + 3(x-3) (x-2))/(x-3)(x-2)(x+3)

Applying the Law of Multiplicative Distribution in Step 3

Thus, we have  (x² +3x+3x²-9x-6x+16)/(x-3)(x-2)(x+3)

Step 4: Gather Related Items

This results in:  (x²+3x²)+(3x-9x-6x)+18/(x-3)(x-2)(x+3)

Step 5: Group like coefficients together

This results in: ((1+3)x² +(3-9-6) * x + 18)/(x-3)(x-2)(x+3)

Step 6: Determine the difference or sum

This results in:(4x²+(3-9-6) * x+ 18)/(x-3)(x-2)(x+3)

To obtain, we factor and simplify the expression.

(2(2x²-6x+6)/(x-3)(x-2)(x+3).

Your question is incomplete but most probably your full question was

Riley makes a mistake in step 2 while doing her homework. What was her mistake? StartFraction x Over x squared minus 5 x + 6 EndFraction + StartFraction x Over x + 3 EndFraction Step 1: StartFraction x Over (x minus 2)(x minus 3) EndFraction + StartFraction 3 Over x + 3 EndFraction Step 2: StartFraction x Over (x minus 2) (x + 3) EndFraction + 3 (x minus 2) Over (x minus 2) (x + 3) EndFraction Step 3: StartFraction x + 3 x minus 6 Over (x minus 2) (x + 3) EndFraction Step 4: StartFraction 4 x minus 6 Over (x minus 2) (x + 3) EndFraction She added the two fractions incorrectly. She used the wrong common denominator. She did not distribute the negative correctly. She did not multiply the first fraction by a factor. Mark this and return

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A single mathematical phrase is referred to as a term. It might be a single number (positive or negative), a single variable (a letter), or a combination of variables multiplied but never added or subtracted. A factor is a number that divides another number by itself and leaves no residue.

An expression, also known as an algebraic expression, is a mathematical statement made up of numbers, variables, and an arithmetic operation between them. For example, 4m + 5 is an expression in which the words 4m and 5 are separated by the arithmetic sign + and m is the variable of the provided expression.

Here,

A term refers to a single mathematical phrase. It might be a single integer (positive or negative), a single variable (a letter), or a mixture of variables that have been multiplied but never added or subtracted. A factor is a number that divides another number by itself with no remainder.

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Answer: This is a system of equations problem. We can set up the following equations:

x + y = 14 (where x is the number of hours Susie spent cutting grass and y is the number of hours Susie spent tutoring)

12x + 14y = 184 (where 12x represents the amount of money Susie made cutting grass and 14y represents the amount of money Susie made tutoring)

We can solve for x and y using different methods such as substitution or elimination.

By substitution:

x + y = 14

12x + 14y = 184

We know that y = 14-x.

so we can substitute it in second equation.

12x + 14(14-x) = 184

12x + 196 - 14x = 184

-2x = -12

x = 6

y = 14-x = 14-6 = 8

So Susie worked 6 hours cutting grass and 8 hours tutoring.

You can cross check by putting the values in the first equation x+y = 14.

Step-by-step explanation:

The image will be formed at the center of curvature itself with the same size and real but it will be inverted.

If an object is placed at the center of curvature of a concave mirror, light rays meet to form an image that is real, inverted, and at the same size as that of the object. The image formed is not magnified.

When the object is located at the center of curvature, the image will also be located at the center of curvature. In this case, the image will be inverted. The image dimensions are equal to the object dimensions.

If the object lies on the center of curvature in front of a concave mirror, the image is also formed at the center of curvature.

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On solving the system of linear equations 4x - 6y = 10 and 9x + 2y = 7, the value of x is x = 1 and y is y = -1.

What is a linear equation?

A linear equation is one that has a degree of 1 as its maximum value. No variable in a linear equation, thus, has an exponent greater than 1. A linear equation's graph will always be a straight line.

The first linear equation is - 4x - 6y = 10

The second linear equation is - 9x + 2y = 7

Multiply equation (2) by 3 -

3(9x + 2y) = 7 × 3

27x + 6y = 21.....(3)

Add equation (1) and (3) -

4x - 6y + (27x + 6y) = 10 + 21

4x - 6y + 27x + 6y = 10 + 21

Combine the like terms -

31x = 31

x = 1

Substitute the value of x in equation (2) -

9(1) + 2y = 7

9 + 2y = 7

2y = 7 - 9

2y = -2

y = -1

Therefore, the values of x and y is x = 1 and y = -1 respectively.

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