Need help getting stuck on this problem

Need Help Getting Stuck On This Problem

Answers

Answer 1

Answer:

Variable x in first equation

Step-by-step explanation:

Given system

x = 5y - 1x + 2y = 13

Variables in this system are x and y.

Isolating a variable means rearranging the equation so that a variable of our interest is on its own in one side of the equal sign.

We see variable x is isolated in the first equation.

In the second equation both of the variables are on the same side so they are not isolated.

Answer 2

Answer:

x

Step-by-step explanation:

x=5y-1--(1)

The x variable is isolated here as it's solo on left side

Solve the equations

x+2y=13x=-2y+13--(2)

Equate

5y-1=-2y+137y=14y=2

x=10-1=9


Related Questions

eu preciso de ajuda pfvr:(

Answers

I’m not a true percent sure but I think it’s C

hey cutie i need help :(
select all that apply !

Of the students who prefer science, 70% are female.
The number of students who prefer science is 130
Of the students who prefer math, 21 are male.
Of the students who prefer math, 17% are male.
Of the students who prefer science, 54% are female.
Of the students who prefer math, 14% are male.

Answers

Answer:

wrong right right wrong right wrong

Step-by-step explanation:

70/ 130= 53.8%

4th row 3rd one to the right

2nd row, 2nd one to the right.

21/156 = 13.4%

70/130 = 53.8% round to get 54%

21/156 = 13.4%

so 2nd 3rd 5th apply

You and your friends are at the local ice cream shop. You get a cone that has a diameter of 12 cm and a height of 12 cm that is full of ice cream, and has a sphere of ice cream on top with the same diameter. What is the total volume of your ice cream cone? Show your work in terms of π.

Answers

Answer:

the answer is 24 centimeters

The guy up top is right this is correct did t oh get it right

One morning at a zoo, there were 165 adults and children who paid to enter. The zoo collected $1,440 from admission fees. The price of admission is $10 for an adult and $7 for a child. How many children were admitted to the zoo?

Answers

Answer:

number of children admitted to the zoo=70

let adult =a

let children=c

a+c=165........equation 1

10a+7c=1440.......equation 2

a=165-c........equation 3

substitute equation 3 in equation 2

10a+7c=1440

10(165-c)+7c=1440

1650-10c+7c=1440

-10c+7c=-210

-3c=-210

c=70

Therefore children =70

Find the perimeter P of the figure shown. Simplify your answer

Answers

Answer:

C) 26x + 3

Step-by-step explanation:

Perimeter = 7x + 2 + 5x - 3 + 9x + 7 + 5x - 3

combine like terms:

Perimeter = 26x + 3

if a mom has 6 kids and i kidnapped 2 how many kids does she have left? ;) just asking

Answers

Answer:

what if i took the 4 other ones??

Answer:

4 kids

Step-by-step explanation:

6 minus 2 equals 4. it one easy qusation

divide .072 by 345.00 and round to the nearest tenth

Answers

Answer:

.072 / 345.00 = 0.0002086956

the tenth place is the fist digit to the right of the decimal point

so it would round to 0.0

Step-by-step explanation:

Plz help I am bad at this

Answers

your answer is either A or D

15 of 20 answer
You and your friend fill 20 bags with leaves. The ratio of bags you filled to bags your friend filled is 2 to 3. Use the tape diagram to find how many bags
you filled
You
Your friend
You filled
bags

Answers

Answer:

8 bags

Step-by-step explanation:

You divided them by 20 which gives you 4. So you take the 3 and multiply by 4 which is 12 bags. And then you do the same for your bags which makes you do 2 times 4 which gives you 8. You take 20 - 12 and that leaves you with 8.

Find the area of a circle with diameter 14 mm. Use the value 3.14 for π, and do not round your answer. Be sure to include the correct unit in your answer.

Answers

Answer:

153.86 mm²

Step-by-step explanation:

Radius of circle = diameter/2 = 14/2 = 7mm

Area of circle = πr² = (3.14)(7mm)²

= 3.14 x 49 mm²

= 153.86 mm²

A right circular cylinder has a volume of 1296 cubic inches if the radius of the cylinder is divided by 12 what be the volume in cubic inches of the smaller cylinder

Answers

Answer:

Step-by-step explanation:

A right circular cylinder has a volume of 1296 cubic inches

The volume of a cylinder = πr²h

Step 1

We find the radius

1296 inches = πr²h

r² = 1296/π ×>h

if the radius of the cylinder is divided by 12 what be the volume in cubic inches of the smaller cylinder

I will give BRAINLIEST

Answers

Answer:

D.

Step-by-step explanation:

the factors are (x-1)(x+4)(x-4)

HELPEOEODODOEKEKEL PLEASE

Answers

Answer:

Lily earns $225

y represents the amount that Lily earns

x represents the painting's price

Step-by-step explanation:

Can anyone plz answer this question, i will give brainliest

Answers

Answer:

C.6

Step-by-step explanation:

Remember, a constant term is a term that keeps repeating. Also, it's the only term that doesn't contain a variable. In this equation, 6 is the constant.

Hope I helped!!!

Chapter 7 need help ASAP

Answers

Answer:

The answer should be that Q is (-3,-2)

Step-by-step explanation:

The average area of a bedroom in a home is 219 square feet with a standard deviation of 32.5 square feet. What is the largest a bedroom can be and be among the smallest 25% of bedrooms in a home?

Answers

Answer:

197.095

Step-by-step explanation:

Mean, m = 219 ft²

Standard deviation, s = 32.5 ft²

For a bedroom to be among the smallest 25%

P(x < Z) = 0.25

From Z probability calculator, this corresponds to a Zscore of - 0.674

Recall :

Zscore = (x - m) / s

x = bedroom size

-0.674 = (x - 219) / 32.5

-0.674 * 32.5 = x - 219

-21.905 = x - 219

x = - 21.905 + 219

x = 197.095

Hence, the largest a bedroom can be and still be among the smallest 25% is 197.095

please help me please

Answers

Answer:

the answer is 70

Step-by-step explanation:

Because I'm in collage I know this stuff just trust me here

!!!!?HELP WILL MARK BRAINLIST ANSWER PLEASE HELP!!!! !!ALSO I ADDED THE PICTURE!!!
The pressure in the Hartford Dam is building because of all the
melted snow from the winter. The lake behind the dam is as high
as it gets all year. The managers have decided to open three
floodgates on the dam. Each one is a different size, and that means
a different amount of water comes out of each one. The table below
shows the gallons per second coming out of each gate.

Answers

Answer:

I believe it's 20 seconds.

Complete the set of data with one value so that the mean of the data is 24. 26, 35, 10, 18, 15, 37, 25, 20, 15,

Answers

Answer:

39

Step-by-step explanation:

So there are 9 values. (1 to be added). First we add them all up. And we need to add another value. So the mean is all of the values added up, divided by the number of numbers. If we add another value, then there'll be 10 values. 24x10 is, of course, 240. If you add all of the given values, you get 201. And we can easily create the equation, x+201=240, and x, or the missing value, is obviously 39.

If ε = {whole numbers less than 50 but greater than 20} and X = {perfect squares}, Y = {factors of 12}, Z = {prime numbers}; find the following:
a) X ∪ Y
b) X ∩ Y
c) X ′
d) X′ ∩ Y ∩ Z

Answers

Answer:

A. X∪Y = {25, 36, 49}

B. X∩Y = ∅ i.e empty set

C. X' = {21, 22, 23, 24, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48}

D. X′∩Y∩Z = ∅

Step-by-step explanation:

We'll begin by determining the universal set (ε), set X, set Y and set Z.

This can be obtained as follow:

ε = {whole numbers less than 50 but greater than 20}

ε = {21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49}

X = {perfect squares}

X = {25, 36, 49}

Y = {factors of 12}

Y = ∅ i.e empty

Z = {prime numbers}

Z = {23, 29, 31, 37, 41, 43, 47}

A. Determination of X∪Y

X = {25, 36, 49}

Y = ∅

X∪Y =?

X∪Y => combination of elements in set X and Y without repeating any element in both X and Y.

X∪Y = {25, 36, 49}

B. Determination of X∩Y

X = {25, 36, 49}

Y = ∅

X∩Y =?

X∩Y => elements common to both set X and Y

X∩Y = ∅ i.e empty

C. Determination of X′

ε = {21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49}

X = {25, 36, 49}

X' =?

X' => elements in the universal set but not found in set X.

X' = {21, 22, 23, 24, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48}

D. Determination of X′∩Y∩Z

X' = {21, 22, 23, 24, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48}

Y = ∅

Z = {23, 29, 31, 37, 41, 43, 47}

X′∩Y∩Z =?

X′∩Y∩Z => elements common to set X', Y and Z

X′∩Y∩Z = ∅

Find the value of x. Round to the nearest tenth of a unit. 203 m 22° O A. 82.0 m O B. 218.9 m O C. 502.4 m O D. 541.9 m​

Answers

Answer:  502.4 m

Step-by-step exp

Answer: C or 502.04

Step-by-step explanation: took the practice got 100%

2.3
Write the ratio in its simplest form:
Convert
2 m : 8cm: 40mm​

Answers

Answer:

1:20:500

Step-by-step explanation:

2m:8cm:4mm

Convert the three to a single unit, take mm giving 2000:80:4

In its simplest form 500:20:1=1:20:500

find the value of x plz help

Answers

Answer:

29 degrees

Step-by-step explanation:

Both angles are the same.

29 Degrees if it is a isosceles

What is the sum of the two fractions below in simplest form.
3 3/8 and 2 1/4

Answers

Answer:

5 5/8

Step-by-step explanation:

This is in the simplest form

Solve the equation for X+15 =X+30

Answers

Answer:

i'm pretty sure there's no solution

Answer:

Step-by-step explanation:

Marcus has 3/4 of and 8-piece pizza left over from last night. He eats 1/3 of the left over pizza for a snack. How much of the original pizza is left after his snack?​

Answers

Answer:

1/3 of the pizza remains.

Step-by-step explanation:

Matthew eats 1/3 of 1/2 of the pizza, which is (1/3)*(1/2) = 1/6 of the pizza.  The amount of pizza left is

1/2 - 1/6 = 3/6 - 1/6 = 2/6 = 1/3

1/3 of the pizza remains.

please helpppp!!!will mark brainlyist

Answers

The answer is CB, AC, and AB

What is the volume of a cylinder,in cubic feet,with a high of 5 feet in a base diameter of 10 feet?Round to the nearest tenth place

Answers

Answer:

390.7ft³ is the answer

Points that you can have! :)

Answers

Answer:

Thank youuu !

Step-by-step explanation:

Answer:

Thank you

Step-by-step explanation:

What is the area of this composite figure??

Answers

Answer=53

Step-by-step explanation:

Other Questions
PLease help me asnwer this!! What is the volume, in cubic inches, of a rectangular prism with a height of 19 inches, a width of 11 inches, and a length of 4 inches? Write a slope intercept equation for the following table can SOMEONE PLEASE answer Please write 4 sentences about your hobby.in French Unit 10: Circles Homework 4: Inscribed Angles Find each angle or arc measure of mRS You have been retained to testify as a damages expert at a binding arbitration about the financial loss your client sustained when a supplier shipped it defective raw materials. Several days before the arbitration proceeding, you discovered that the arbitrator is a member of your country club who occasionally plays golf with you.a. Do you have a conflict of interest in testifying under oath on behalf of your client?b. Should you discuss this case with the arbitrator if you see him at the country club?c. Does the arbitrator have a conflict of interest? HELP MEEE PLEASEEEEEEEEEEEEEE 2. Which expression is equivalent to 5(n + 3) - 10? A. 5+1 +5+3 10 B. 5 n + 5 + 3 - 10 C. 5. n + 5 3 10 D. 5 n 5 3 10 7. which was the city-states where fighting and warfare was taught to the people.help me please this is due today plz help quick4. What three questions can you ask yourself to find out how you want the music you compose to sound?5. What is the V Chord?________________________________________Critical Thinking Questions1. Describe how you would write a motive.2. How do melodic motive and chord progression work together?Explain the motive shown here Writing Prompt: Write a response in which you agree or disagree with the following statement: "Teenagers are not responsible enough to drive when they are sixteen-years-old." Student's Introduction: While some sixteen-year-olds may seem immature, most are just as responsible as adults. Many of us help take care of our homes, look after our younger siblings, and assist with other adult duties. Teenagers should be given more credit and trusted with bigger responsibilities.Rewrite the student's introduction so that it contains stronger claims, which are related directly to the prompt How vocation stress may affect your family life Consider the town that you live in the economy, the businesses that exist, the culture. Now imagine that you have already acquired a degree in culinary arts and several food service certifications, and you are ready to become an entrepreneur in the food service industrywhat will you do? Evaluate and examine various entrepreneurship opportunities that you might be interested in. the highest mountain in the world if 3.142110 = 345.62, why is the decimal point not infront of the 5? Drag the tiles to the correct boxes to complete the pairs.Nelly goes shopping on a weekday. She picks up protein powder so she can make a protein shake. She buys a double cheeseburger on her way home. She eats part of it, and then stores the rest of it in a paper bag so she can eat it later. Later in the day, she puts together several small packages of candies as gifts for her nieces and nephews. She labels each package and sends it through the mail.Match each item or action with the organelle it could represent. Question 4 of 10Samples of different materials, A and B, have the same mass, but the sampleof B is higher in density. Which statement could explain why this is so?A. The sample of material B has greater volume than the sample ofmaterial A.B. The particles that make up material A are more closely packedtogether than the particles that make up material B.C. The particles that make up material B are more closely packedtogether than the particles that make up material A.D. The particles that make up material A have more mass than theparticles that make up material B.SUBMIT HELP ME I WILL BRAINLIST YOU True or False: Texas cotton farmers didn't really need the railroads after theCivil War because they were already quite wealthy Please help As soon as possible thanks so much!