For this linear equation, give the number by which you would multiply the terms in each equation in order to eliminate one of the variables. Then solve this system:
5x+2y=-1; 3x+7y=11

This would be a big help if you also include the process to help me understand the answer!

Answers

Answer 1

Answer:

Step-by-step explanation:

The solution to this system of linear equations 3x – 2y = 14 and 5x + y = 32 is (x, y) is (6, 2).

Answer 2

Answer:

Step-by-step explanation:

If we choose to eliminate x, multiply the first equation by -3:  -15x - 6y = 3

and multiply the second by 5:  -15x - 35y = 55

Note that this allows us to eliminate x.  We get:

-6y = 3

-35y = 55

which sum up to -41y = 58.  Thus, y = -58/4.


Related Questions

what's 3n+1? my teacher asked everyone in his class (including me) and he said it's almost impossible (then he started laughing when we came up with an answer)
why is this?

Answers

Answer:

It is a Collatz Conjecture Problem

Step-by-step explanation:

By definition The Collatz conjecture is a conjecture in mathematics that concerns sequences defined as follows: start with any positive integer n.

It really just requires evenness within the problem.

n (in many cases) is considered infinite

Giving brainliest to the correct answer please hel

Answers

Answer:

3.805 x 10^7.

( D.)

Step-by-step explanation:

the answer is d
= 3.805 x 10^7

1.Which expression is equivalent to 4 – (- 7)?
Responses

A. -7 - 4

B. 7 + 4

C. 4 - 7

D. - 4 + 7

Answers

B because 4-(-7) equals 11 and 7+4 equals 11 as well

Please Help! Show your work

At the school store, you buy 4 pencils and an eraser. The cost of the eraser is $0.85. Your total cost is $1.45. Write an EQUATION to find the cost of one pencil.

Answers

Answer:

cost of one pencile is 0.15

Step-by-step explanation:

last year, there were m pies baked for the bake sale. This year, there were 124 pies baked. Using m , write an expression for the total number of pies baked in the two years.

Answers

Answer:

→ Last year, there were m pies baked for the bake sale. This year, there were 215 pies baked. Using m , write an expression for the total number of pies baked in the two years.

Step-by-step explanation:  

▶ Given :-

→ Last year, number of pies baked for bake sale = m.

→ This year, number of pies baked for bake sale = 215 .

▶ To find :-

→ The equation that represents the total number of pies baked for bake sale .

▶ Solution :-

→ Let the total number of pies baked for bake sale in two years be ‘x’ .

And, last year no. of pies baked = m [ given ] .

Therefore, the equation that represents the total number of pies baked for bake sale :-

→ x = m + 215 .

✔✔ Hence, it is solved ✅✅.

All you need to do is 124 divided by 2 and your answer is /equal to (m)

C.Explain in words what did you find to find the cost per class in part B

Answers

Answer:

What was part B?

Step-by-step explanation:

There is no picture.

the product of a number and three increased by four is the same as fourteen less than the product of twelve and a number

50 points, PLS ANSWER ASAP

Answers

Answer:

Let the number be x.

[tex]3*x+4=12*x-14[/tex]

[tex]3x+4=12x-14[/tex]

Subtract 4 from both sides:

[tex]3x+4-4=12x-14-4[/tex]

[tex]3x=12x-18[/tex]

Subtract 12x from both sides:

[tex]3x-12x=12x-18-12x[/tex]

[tex]-9x=-18[/tex]

Divide both sides by -9:

[tex]\frac{-9x}{-9} =\frac{-18}{-9}[/tex]

[tex]x=2[/tex]

The number is 2.

The Number is 2

What is Number?

A Number is an arithmetic value used for representing the quantity and used in making calculations.

Given that the product of a number and 3 is equal to the 14 less than product of twelve and that number.

Let the number be x

3x + 4 = 12x - 14

12x - 3x = 14 + 4

9x = 18

x = 2

Hence, the required number is 2.

For references on numbers, click;

https://brainly.com/question/17429689

#SPJ2

brain test, pick the biggest number

506+798
876-708
904x604

Answers

Answer:

1 1304

2 168

3 546016 is the answer

The answer is C because your multiplying bigger number

For which problem situation could the equation 45x + 55x = 350 be used?

A 350 mile telephone cable costs $55 per mile for one section and $45 per mile for a different section. What is the total cost of the cable?

A car, traveling 45 mph, leaves Dallas heading for Odessa 350 miles away. At the same time, a truck leaves Odessa for Dallas traveling 55 mph on the same road. When will the two vehicles meet?

A 350 mile telephone cable is cut so the shorter piece is 45/55 of the whole cable. How long is each piece?

Two vehicles start from the same point traveling in the same direction. One vehicle travels 55 miles per hour (mph) and the other 45 mph. When will the two vehicles be 350 miles apart?

Answers

Answer:

45 x + 55 x = 350

x increases until the total equals 350

45 + 55 = 100 = relative speed of approach

(B) traveling cars meet this equation's specifications (x = 3.5)

The correct statement is option B)

What is the speed of an object?

Speed is the rate at which an object's position changes, measured in meters per second. For example, if an object starts at the origin, and then moves three meters in three seconds, its speed is one meter per second. The equation for speed is simple: distance divided by time

Given here: The equation as 45x+55x=350

A car, traveling 45 mph, leaves Dallas heading for Odessa 350 miles away. At the same time, a truck leaves Odessa for Dallas traveling 55 mph on the same road.

Therefore the relative speed of the two trucks is given by 45+55=100

and let the time taken to meet is x then we can construct an equation as follows x=350/100

or,  45x+55x=350

Hence, The correct statement is option B)

Learn more about speed here:

https://brainly.com/question/28224010

#SPJ2

PLEASEEEEE HELPP( look at picture )

Answers

Answer: Alright i know exactly how to do this :) i need ur help though it's been a bit since i did this the types they are asking for what are they?

I need a multiple choice otherwise i dunno how to help with identifying them

The math is simple tho

16x-2=15x+4

add 2 to -2 to elimate itself add 2 to +4 =6

16x=15x+6

we need x by itself subtract 15x from itself and then 16x

1x=+6 = x is 6

The rest go the same-

Step-by-step explanation:

don't add links please.

Answers

Answer:

It’s A

Step-by-step explanation:

Solve for x. [PLEASE Read carefully]

23(−3.1−x)=5

Enter your answer as a mixed number in simplest form in the box.

Answers

Answer:

-10.6 or 53/5

Step-by-step explanation:

go ogle math

Answer: (3) 73/230

Step-by-step explanation:

You times whats in the brackets with 23 then remove the brackets which makes it = -71.3 - 23x = 5

Then i would swap the 23x and 5 around which makes it = 71.3 - 5 = 23x

subtract 71.3 - 5

-76.3 = 23x

Divide -76.3 by 23 (Use a calculator) =

(3) 73/230

Thats how simplified it can go. (fraction cant be simplified more)

(3) is the leftover whole number that is next to the mixed number

2.4 x 0.4 = ?
Again not smart

Answers

Answer:

o.96

Step-by-step explanation:

The answer is 0.96 : Explanation 2.

Jim sells used drones for 70% of the original manufacturer's purchase price of a new drone.
Jim also sells new drones for 15% more than the manufacturer's purchase price of a new drone. Write a function to to determine the total amount a customer saves if they purchase a used drone rather than a new drone from Jim's store. Let x represent is the manufacturer's
purchase price of the drone.

Answers

Just make the % as a decimal and multiply it with the dron cost




Someone help, please. Thank you
Also, enter your answer in scientific notation

Answers

Answer:

2450

Step-by-step explanation:

this is the correct answer

Answer:

The answer in scientific notation is [tex]2.45 * 10^3[/tex]

Step-by-step explanation:

Hope this helps.

1) Write an equation that can be used to solve for the missing angles. (5pts)

2) Then Solve the equation for find the value of X. (Make sure to explain or show all the steps to get full Credit)

Answers

I don’t know how I should find the missing angles. But I can solve for X. So first we need to combine like terms so we add 2x, x and x which gives us 4x. And we set up our problem like this: 4x + 24=180. So we then subtract 24 from 180 and get 156 then divide 4x and 156, which leaves us with x=39

Help please and I will give brainliest

Answers

I think it’s b
Sorry if I’m wrong!
Answer: D
the domain is repeating

Question 11 (True/False Worth 1 points)

(04.02 MC)

The table below shows the number of wafers in different numbers of packs:


Number of Packs Number of Wafers
2 16
3 24
4 32
5 40


Is this true or false? The numbers in the table represent a proportional relationship.
True
False

Answers

True. These answers show a relationship because you add eight every time the pack goes higher.

Answer:

True. hop it helps you out :)

Step-by-step explanation:

I can't really what he did wrong (please don't just take my points)

Answers

Answer:

Each sandwiches costs $7

Step-by-step explanation:

Both cost 94$ explaination: add both costs and then you get your sum

Please help me solve this: y=8x 4x+y=48

Answers

Answer: x=4, y=32

Step-by-step explanation:

y=8x

4x+y=48

Plug in 8x for y in the equation

4x+8x = 48

Add like terms

12x= 48

Divide both side by 12

12x/12=48/12

x= 4

Then plug 4 back into the original equation in place of x

4(4)+y=48

16+y=48

Minus 16 from both sides

y= 48-16

y= 32

Answer: (4,32)

Answer: x = 4

Step-by-step explanation: 48 divided by 12 = 4

4 x 4 = 16

Y = 8x

8 x 4 = 32

32 + 16 = 48

HELPS PLZ

guys i dont even know if this is supposed to be here but anyways i have a test tmr and I'm hella nervous right now can anyone help plz thx

Answers

Answer:

how can I help you?and what is the question?

Answer:

just stay calm and relax...being relaxed is very important for performing good in you exam. And also a good sleep is also must for your concentration on the day..

Step-by-step explanation:

A _____ is a ratio comparing quantities measured in different units.

• A unit rate is a rate that compares a quantity to exactly one ______ of another quantity.

• Unit rates can be used to make rate _____ consisting of equivalent ratios (fractions).

• A _____ table can be used to solve a problem. Find a missing value in a ratio table by:

• using a pattern of ____ each time.

• multiplying.

• writing an ____ ratio.

Answers

Answer:

1. Rate

2. unit

3. not sure what this one is sadly

4. ratio

5. dividing

6. equavilent

1. Rate 2. unit 3. not sure what this one is sadly 4. ratio 5. dividing 6. equavilent

**I NEED THIS ASAP THE FIRST PERSON WHO ANSWERS THIS CORRECTLY WILL BE MARKED BRAINLIEST**!!

The equation for this line is y = x + . If she continues the line, she would see that it would take 10 weeks for her cat to lose 5 pounds.

Answers

Answer:

y=1/2x+5

Step-by-step explanation:

find slope

1/2 = 1/2

find y intercept

(0, 5)

insert into equation

y=1/2x+5

Answer: y=1/2x+5

Step-by-step explanation:

Hope it helps

Also please mark Brainliest

The question is below.

Answers

The ratios are 4:2:3:3 = 1 : 1/2 : 3/4 : 3/4
The ratios are 4:2:3:3 =1

9+(6-6)×4+5

A. 5

B. 14

C. 27

D. 38

Answers

Answer:

14

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

HELP HELP

Madie drove 200 miles at a speed of 50 miles per hour. Which equation will help you find the number of hours she was driving?

Answers

Answer:

h = 200/5

Step-by-step explanation:

200/50=h

h=number of hours

I need help on this question

Answers

Answer:

1,660.35

Step-by-step explanation:

First, figure out what 3/5 of her earnings are and substract it from the total earnings. Then, substract it by the amount of the other items.

Answer;
*£1680.34

Explanation;
First you need to find 2/5 of £4283.30 which is £1713.32. This represents or shows how much money she has left after her bills. Now minus £19.99+£12.99 (this shows the money she spent on the two shirts and sunglasses) This leaves Selena with £1680.34

Equation in full;
2/5 / £4283.30 = £1713.32
£1713.32-(£19.99+£12.99)=£1680.34

Hope this helped!! Much love and good luck <33 :)

The Green Goober, a wildly unpopular superhero, mixes 3 liters of yellow paint with 5 liters of blue paint to make 8liters of special green paint for his costume.

Write an equation that relates y, the amount of yellow paint in liters, and b, the amount of blue paint in liters, needed to make the Green Goober's special green paint.

Answers

Answer:

y+b=8 liters

3L+5L=8L

Step-by-step explanation:

By adding the 5 nd the 3 you can easily find 8 liters.

3 liters are needed of blue and five of yellow to make 8 liters of green.

Answer:

8g

Step-by-step explanation:

3y + 5b = 8g, your just adding 3 and 5 :))

PLS HELP
I Need this done now!

Answers

Answer:

3

Step-by-step explanation:

What's 1 + 1 = ?

i forgot-

Answers

Answer:

[tex]2[/tex]

Step-by-step explanation:

[tex]1+1=2[/tex]

Answer:

=2

Step-by-step explanation:

1 + 1 = 2

2 + 2 = 4

1 + 3 = 4

2 + 3 = 5

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