Find X and Y. Give reasons to justify your answer

Find X And Y. Give Reasons To Justify Your Answer

Answers

Answer 1

Answer:

x = 8. y = 21

Step-by-step explanation:

x + 8x + 18 = 90

combine like terms

9x + 18 = 90

-18 both sides

9x = 72

divide by 9 both sides

x = 8

______

3y + 27 = 90

-27 both sides

3y = 63

divide by 3 both sides

y = 21


Related Questions

15) Set up an equation and solve using a FULL sentence.
Erlena has $250. She saves $75/month. Jabril has $400. He
saves $50/month. When will they have the same amount?
How much will each of them have at that time?

Answers

By 6 months both of them have same amount

Each of them have $700 at that 6 months.

What is an equation?

In French, an equation is defined as having one or more variables, whereas in English, an equation is any well-formed formula consisting of two expressions linked by an equals sign.

Unknowns are the variables for which the equation must be solved, and equation solutions are the values of the unknowns that satisfy the equality.

Given that, Erlena has $250 and she saves $75/month then,

The equation is,

250+75x

And also given that, Jabril has $400 and he saves $50/month then,

The equation is,

400+50x

250+75x=400+50x

150=25x

x=6

By 6 months they have same amount

250+75(6)=700

400+5(6)=700

They both have $700 at that 6 months

Therefore, By 6 months both of them have same amount

Each of them have $700 at that 6 months.

To know more about equation, visit:

https://brainly.com/question/10413253

#SPJ1

Suppose you sell 8,000 of the 3 pack of lenses described in question 3 above in one year. You cost on each 3 pack is $29.95 and you sell them for $59.95. If your operating expenses for the year total $144,080, what are your Net Income and Net Profit Margin Percentage?

Answers

Your net income and Net profit margin percentage, given the cost of the pack of lenses, and your operating expenses are:

Net income - $95, 920Net profit margin percentage - 19.3%

How to find the net income?

To find the net income, first find the revenue:

= Number of packs x selling price

= 8, 000 x 59.95

= $479,600

The cost of goods sold is:

= Cost of lenses x number of lenses

= 29.95 x 8,000

= $239, 600

The net income is:
= Revenue - cost of goods sold - operating expenses

= 479, 600 - 239,600 - 144,080

= $95, 920

The net profit margin percentage is:

= Net income / total revenue

= 95, 920 / 497, 600

= 19.3%

Find out more on profit margin percentage at https://brainly.com/question/8189926

#SPJ1

Make a list of all possible rational zeros of f(x)=5x^3+7x^2−81x+45, and then use this list to find all of the functions’ rational zeros, if any exist.

Rational Zero Candidates: ±
Rational Zeros:

Answers

The zeroes of the polynomial are x=3, x=-5 and x=3/5

What are Zeroes of the polynomial?

The locations where a polynomial becomes zero overall are known as the zeros of the polynomial. The term "zero polynomial" refers to a polynomial with a value of zero . The highest power of the variable x is referred to as a polynomial's degree. A linear polynomial is a polynomial with degree 1.

Given:

f(x)=5x³+7x²−81x+45.

let us take x= 3

5(27)+7(9)-81(3)+45

=135+63-243+45

= 243-243

=0

So, 3 is a root of polynomial and x-3 is factor of Polynomial.

Now, divide 5x³+7x²−81x+45 by x-3 we get 5x²+22x-15

Now, factorise 5x²+22x-15.

= 5x²+25x-3x-15

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

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

Then, x= 3/5 and 5

Hence, the zeroes of the polynomial are x=3, x=-5 and x=3/5

Learn more about Zeroes of the Polynomial here:

https://brainly.com/question/10702726

#SPJ1

Find the slope of the table below.

Answers

Answer: 10

Step-by-step explanation:

    To find the slope, we will take two points and find the change in y over change in x.

[tex]\displaystyle \frac{y_{2} -y_{1} }{x_{2} -x_{1} } = \frac{35-15}{3-1}=\frac{20}{2} =10[/tex]

    The slope of the table is 10.

Danny’s home cost $350,000. If the federal government program for flood damage insurance covers only $150,000, what percent of the total value does this represent?

Answers

Amount of $150,000 represents 42.86% of $350,000.

What is Equation Modelling?

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

We have Danny’s home cost $350,000. The federal government program for flood damage insurance covers only $150,000.

Assume that it represents [x%] percent of the total value. Then, we can write -

x = (150000/350000) x 100

x = 42.86%

Therefore, $150,000 represents 42.86% of $350,000.

To solve more questions on equation modelling, visit the link below-

brainly.com/question/9144182

#SPJ1

What do you know about the relationship between lines a and b? justify your conclusion with a theorem or postulate

Answers

Answer:

last answer.

Step-by-step explanation:

First of all, how did you get the second answer?

Line a has to be perpendicular to Line b.

Perpendicular transversal theorem:

In a plane, if a line is perpendicular to one of two parallel lines , then it is perpendicular to the other line also.

In this case, a||c, and line b is perpendicular to line c.

We can therefore use perpendicular transversal theorem to state that line a is perpendicular to line b.

Nakeisha is a songwriter who collects royalties on her songs whenever they are played in a commercial or a movie. Nakeisha will earn $30 every time one of her songs is played in a commercial and she will earn $110 every time one of her songs is played in a movie. Nakeisha's songs were played on 2 more commercials than movies, and her total earnings on the royalties from all commercials and movies was $760. Write a system of equations that could be used to determine the number of commercials and the number of movies on which Nakeisha's songs were played. Define the variables that you use to write the system. Please help this is due tonight!!!

Answers

Answer:

z = 30x + 110y

x = y + 2

z = royalties

x = no of commercial

y = no of movies

The siding of a house is 2250 square feet. The siding needs two coats of paint.

1 quart costs 18 dollars and covers 80 square feet;
1 gallon, costs 29 dollars, covers 320 square feet.

A. What is the minimum cost of the paint needed to complete the job?

B. How much paint is left over when you spend the minimum amount?

Answers

Answer: Minimum cost = $264

Paint left over = 7/8 qt

Step-by-step explanation:

6 gal covers 1920 sf (6 gal x 320 sf/gal)

6 gal x $29/gal = $174

2250 sf - 1920 sf = 330 sf

Need 4.125 qt to cover 330 sf, but you can't buy a partial quart

5 qt x $18/qt = $90

Total cost = $174 + $90 = $264

You have 7/8 qt left over

Make the subject of
X
16
=
р

Answers

Answer: x= p16

Step-by-step explanation:

Question 30 of 50
The inequality x ≤ -2 would represent the values {-1, -2, -3}.

False

True

Answers

Answer:

False. -1 is more than -2, so the first value shows it is false.

5–3 3/5 ÷ (–3– –3 3/4)

Answers

Answer:

[tex]0.2[/tex]

Step-by-step explanation:

... .. ... .. .

A coach can take 40 passengers.how many passenger can be carried by 18 coaches​

Answers

Answer: 720 passengers can be carried by 18 coaches

C:P
1:40
18:x

What is the value of the expression m - when m = 3?
1/15
13/15
23/15

Answers

The value of the expression when m = 3 is 13/15. So option(2) is correct.

The equation is defined in its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, x + 3 = 4 is an equation, in which x + 3 and 4 are two expressions separated by an 'equal' sign.

Given the expression as shown below:

2/5 m - 1/3

If m is equal to 3, then the expression will be;

2/5(3) - 1/3

6/5 - 1/3

Find the LCM

6/5 - 1/3 = 3(6)-5/15

6/5 - 1/3 = 18-5/15

6/5 - 1/3 = 13/15

Therefore the value of the expression if m = 3 is 13/15

To learn more about equations here visit

https://brainly.com/question/2463132

#SPJ9

0.721x10 to the second power

Answers

Answer:

72.1

Step-by-step explanation:

It is 10 to the power of 2 because the exponent is 2. The result is a number bigger than the origin or base number because the exponent is positive. We move the decimal two times to the right to arrive at our conclusion:

0.721--> 72.1

therefore, your answer will be 72.1

6. A garbage truck collects trash from
68 trash cans. Another truck collects
trash from 39 fewer trash cans. How
many trash cans do the trucks collect
trash from in all?
trash cans

Answers

The answer should be 97 trash cans…

a waste bin is in the shape of a cylinder. the diameter of the base is 20cm and the height is 25cm. what is the volume of the bin. please help me with the answer.

Answers

Answer:

[tex]250\pi[/tex] cm³

Step-by-step explanation:

If the radius is 20 cm, the diameter is 10 cm.

Thus, the volume is [tex]\pi(10^2)(25)=250\pi[/tex] cm³.

What is the image of (3,3)(3,3) after a dilation by a scale factor of 1/3
centered at the origin?

Answers

The image of (3, 3) after dilation  by a scale factor of 1/3 centered at the origin will have coordinate (1, 1)

What is dilation?

Dilation refers to the transformation that increases or reduces the image formed after the transformation

When the scale factor is greater that 1 the transformation will lead to magnification when the scale factor is less than 1 the image formed is compressed.

The transformation rule fir dilation is (x, y) → (kx, ky)

where k is the scale factor = 1/3

(3, 3)  → (1/3 * 3, 1/3 * 3)  → (1, 1)

Learn more about transformation here:

brainly.com/question/29321966

#SPJ1

Write an equation for the quadratic graphed below:
x-intercepts: (-3,0) and (1,0); y-intercept: (0,-3)

Answers

Answer:

y = (x + 3)(x - 1) or y = x² + 2x - 3

Step-by-step explanation:

Quadratic equation:

y = a(x - p)(x - q), where a - constant, p and q - x-intercepts.

Substitute p and q:

y = a(x - (-3))(x - 1)y = a(x + 3)(x - 1)

Find the value of a, using the y-intercept:

- 3 = a(0 + 3)(0 - 1)- 3 = a*3*(-1)-3 = - 3aa = 1

The equation is:

y = (x + 3)(x - 1)

or

y = x² + 2x - 3

Dwayne wants to redecorate his bedroom and decides to purchase new furniture. The following graph could be used to represent the value of the new bedroom furniture, f(x), after x years.

A graph of an exponential function which decreases through the points 0 comma 1200 and 2 comma 675.

Which of the following statements is/are true based on the graph and the context of the problem?


The y-intercept (0, 1200) represents the initial cost of the bedroom furniture.
The function is negative on its entire domain.
The domain is x ≥ 0 to represent the number of years after the bedroom furniture was purchased.

Answers

The y-intercept (0, 1200) represents the initial cost of the bedroom furniture option (A) is correct.

What is an exponential function?

It is defined as a function that rapidly increases and the value of the exponential function is always positive. It denotes with exponent y = a×

where a is a constant and a>1

The exponential function is of the form:

y = ab×

Plug x = 0 and y = 1200

1200 = a

Plug x = 2, y = 675, and a = 1200

675 = 1200(b)²

b = 0.75

y = 1200(0.75)×

y = 1200

Thus, the y-intercept (0, 1200) represents the initial cost of the bedroom furniture option (A) is correct.

Learn more about the exponential function here:

brainly.com/question/11487261

#SPJ1

please help me solve this question

Answers

The function on the graph can't be a sin, then the correct option is:

y = A*cos(k*x) + C

Which equation matches the graph?

We know that the graph is either of the equation:

y = B*sin(k*x) - C

Or

y = A*cos(k*x) + C

Now, notice that there is a maximum at x = 0

And we also know that:

sin(0) = 0

cos(0) = 1

Then the option with the sin can be discarded, as it does not have a maximum at x = 0.

The correct option is:

y = A*cos(k*x) + C

Learn more about sinusoidal functions.

https://brainly.com/question/9565966

#SPJ1

The vertices of a triangle are p(-1,4) Q (8,-3) and R(2,-6) Name the vertices of R y-x (PQR)

Answers

The reflection of the points P(-1, 4), Q(8, -3) and R(2, -6) across the line y = x are P'(1, -4), Q'(-8, 3) and R'(-2, 6).

First, let us understand the reflection of a point:

The reflection of a point or set of points across the line y = x results in a point or set of points whose coordinates are the interchange of the x-value and the y-value of the original point or set of points.

We are given:

The vertices of a triangle are P(-1, 4), Q(8, -3) and R(2, -6).

We need to find the reflection of the points across the line y = x.

So,

P(-1, 4) = P'(1, -4)

Q(8, -3) = Q'(-8, 3)

R(2, -6) = R'(-2, 6)

Thus, the reflection of the points P(-1, 4), Q(8, -3) and R(2, -6) across the line y = x are P'(1, -4), Q'(-8, 3) and R'(-2, 6).

To learn more about reflection of a point visit:

https://brainly.com/question/15354154

#SPJ1

Complete the statement. The drawing is not to scale.

Answers

Answer:

The second option so 54 degrees.

Step-by-step explanation:

The line drawn on angle d in both spots indicates it's congruent so if one side is a number the other side is that same number so in this case, it's 54 degrees.

Which transformation always preserves distance and angle measures?

Answers

Step-by-step explanation:

Rigid motion

Rigid motion – A transformation that preserves distance and angle measure (the shapes are congruent, angles are congruent).

help me please I am in need of this answer too

Answers

When corresponding angles are congruent, the lines are parallel

Congruent Angles

Congruent angles are two or more angles that are identical to each other. Thus, the measure of these angles is equal to each other. The type of angles does not make any difference in the congruence of angles, which means they can be acute, obtuse, exterior, or interior angles. The angles which occupy the same relative position at each intersection where a straight line crosses two others. If the two lines are parallel, the corresponding angles are equal.

Examples of the corresponding angle are any angles which are formed on the opposite side of the transversal. Now, it should be noted that the transversal can intersect either two parallel line or two non-parallel lines. Thus, corresponding angles can be of two types:

Corresponding angles formed by parallel lines and transversals

Corresponding angles formed by non-parallel lines and transversals

Looking at the image, angle I is congruent to each other. Angle II is congruent with each other as well as angle III.

When corresponding angles are congruent, the lines connecting them must be parallel. This is the only valid or correct options in the task.

Learn more on congruent angles here;

https://brainly.com/question/1675117

#SPJ1

Solve the equation without using a calculator

[tex]\displaystyle\\3^\frac{x+2}{3x-4}-2\cdot3^\frac{5x-10}{3x-4}=7[/tex]

Answers

Answer:

x = 2

=========================

Rewrite

(5x - 10)/(3x - 4) = (6x - 8 - x - 2)/(3x - 4) = 2 - (x + 2)/(3x - 4)

Substitute

[tex]3^{(x + 2)/(3x - 4)} = t[/tex]

New equation

t - 2·9/t = 7t - 18/t = 7t² - 7t - 18 = 0t² - 9t + 2t - 18 = 0t(t - 9) + 2(t - 9) = 0(t - 9)(t + 2) = 0t - 9 = 0 and t + 2 = 0t = 9 and t = - 2 (excluded as the power of 3 can't be negative)

Substitute back

[tex]3^{(x + 2)/(3x - 4)} = 9[/tex][tex]3^{(x + 2)/(3x - 4)} = 3^2[/tex][tex](x + 2)/(3x - 4) = 2[/tex][tex]x + 2 = 6x - 8[/tex][tex]6x - x = 2 + 8[/tex][tex]5x = 10[/tex][tex]x = 2[/tex]


What kind of relationship is expressed below?

5i+3=7

Answers

The relationship for the expressed value will be an equation, as there is equal sign in between the expression.

What is an equation?

Two or more expressions with an equal sign is called an equation.

As in given expressed value two expressions are equated with equal sign,

5i+3=7

Here, Left hand side is equal to Right hand side.

Also have Equal sign.

Whereas in expression, there will be no equal sign,

only - variables, operators and numeric values.

For Function, expression is equated to F(variable).

Hence, equation is the relationship for 5i+3=7.

Learn more about Equations from the given link:

https://brainly.com/question/27862460

#SPJ1

will give brainiest will give brainiest will give brainiest will give brainiest will give brainiest will give brainiest will give brainiest will give brainiest will give brainiest will give brainiest will give brainiest will give brainiest

Answers

Answer:

28.26

Step-by-step explanation:

Turn into vertex form x^2= 9x-20

Answers

The vertex form of the given equation is (x - 9/2)² - 1/4

Vertex form

The general vertex form is written as

y = a (x - h)² + k

Where, a, h, and k are real numbers, where a ≠ 0.

And x and y are variables where (x, y) represents a points.

Given,

Here we have the equation x² = 9x - 20

Now, we have to convert this equation into vertex form.

In order to convert this into vertex form, first we have to rewrite the given equation as follows:

=> x² - 9x + 20 = 0

Here the coefficient of the x is 9, so now we divide this by 2 : 

=> 9 ÷ 2 = 9/2

And then we have to square it (9/2) ² then we get the value 81/4.

So we add and subtract 81/4, then we get,

=>  x² - 9x + 81/4 - 81/4 + 20 = 0

Now, we have to rewrite it as,

=> [x² - 9x + 81/4] + [-81/4 - 20]

When we simplify it then we get,

=> (x - 9/2)² - 1/4

Therefore, the vertex form of the equation is  (x - 9/2)² - 1/4.

To know more about Vertex form here.

https://brainly.com/question/13921516

#SPJ1

Determine the perimeter of the right triangle shown.

Answers

Answer:

27

Step-by-step explanation:

I looked at the graph and added 6+6=12 so the bottom is 12 and for the height i added 1+8=9 and then i added another 12 because the bottom is also 12 and divided that by 2 which is 6 so i got 27.

this may not be right but i am hoping that is it!

Have A Great Day!!!

QUESTION 1: In the clip, Danny Nguyen is all-in with A 7 against an opponent with A K+. The flop is
5 K 5. After this, the next two cards must both be sevens for Nguyen to win. Compute the probability
of this happening. NOTE: There are three sevens left in the deck and it is no longer a 52 card deck
because the cards shown are removed. Show all calculations in determining your answer

Answers

The probability is 0.00332.

From the given question,

Danny Nguyen has A 7 and opponent has A K+.

The flop is : 5 K 5

As there are two players playing the remaining cards in the deck will be (52 - 2 - 2 - 3 -1(burn)) = 44

For Nguyen to win he needs two of the three 7's left in the deck for turn and river.

For turn we have to select a 7 from the three 7's and for river we have to select a 7 of the remaining two 7's.

So the probability is

P = [tex]\frac{\binom{3}{1}}{\binom{43}{1}}*\frac{\binom{2}{1}}{\binom{41}{1}}[/tex]

P = 0.00332

To learn more about probability link is here

brainly.com/question/29381779

#SPJ1

Other Questions
look at points c and d on the graph what is the distance in units between points c and d round to nearest hundredth Assuming only single bonds are used1. what shape does a central atom from group 4a (14) have?2. what shape does a central atom from group 5a (15) have?3. what shape does a central atom from group 6a (16) have? the graph of a linear function is shown . which word describes the slope of the line What two significant proteins of the muscles are involved in the contraction and relaxation of your muscles?. HELP- Which of the following explains how the economic value of forest ecosystems is measured?O by measuring the total value of recreation money made from forestsO by measuring the total value of raw materials taken directly from forestsO by measuring the total value of services and goods that are taken from forestsO by measuring the total value of products made from items exported from forests The following are necessary links in the chain of infection. When an NA wears gloves, which link is broken, thus preventing the spread of disease?a) Reservoir ( place where the pathogen lives and grows)b) Mode of transmission (a way for the disease to spread)c) Susceptible host (person who is likely to get the disease)d) Causative agent (pathogen or microorganism that causes disease) Use the distance formula to find the distance, to the nearest tenth, from R(7, -2) toW(-2, 3). 7. Which statement summarizes Katie's primary fear about the windstorm?A. She is afraid her dorm room will get hit by a tree.OB. She is afraid a falling tree will crush the piano.OC. She fears that she won't be able to get to class.O D. She fears that Susan will fall apart emotionally. The third term of the sequence is 165. Find the first termTerm to term rule is subtract 2 and then multiply by 3 How does a normal cell become a cancerous cell? Vanya gathered some mushrooms. He dried 2/5 of them. Then he pickled 5/9 of the remaining mushrooms and fried 28 that were left. How many mushrooms did he gather.Need this stat this is due tomorrow When a vector that employs the lacZ gene as a second marker is used in a cloning experiment, bacteria that harbor the recombinant DNA will give rise to?a. blue colonies.b. white colonies.c. red colonies.d. all of the choices are correct. Please post detailed answersDo you think the death penalty should be used? Why or why not? Do you think that capital punishment deters crime? i really need help with this Help! I Have Till 4:301)What are some conflicts or issues surrounding immigration and multiculturalism in the U.S. and the world? Can these issues be resolved? Why or why not?2)Support the following statement using a variety of examples from the unit: Migration significantly changes populations. a boat on the ocean is 4 mi from the nearest point on a straight shoreline; that point is 6 mi from a restaurant on the shore (see figure). a woman plans to row the boat straight to a point on the shore and then walk along the shore to the restaurant. if she walks at 3 mi/hr and rows at 2 mi/hr, at which point on the shore should she land to minimize the total travel time? if she walks at 3 mi/hr, what is the minimum speed at which she must row so that the quickest way to the restaurant is to row directly (with no walking)? what are the three organs of the state ? make a lists. The Pilgrims came to the New world seeking religious freedom and were also called:1. The Puritans because they wanted to purify the teachings and ceremonies of the Church of England.2. The Great Explorers3. The Wanderers Can someone pls give me the answer to that? sodium + calcium hydroxide sodium hydroxide + calciumpls help i needs to write it as a skeleton equation and balance the equation