Mathematics Middle School

Use elimination to solve the system 4x + 7y = -14 and 8x + 5y = 8 for x. Please show work! Will give brainliest!!!

Use Elimination To Solve The System 4x + 7y = -14 And 8x + 5y = 8 For X. Please Show Work! Will Give

Answers

Answer 1

Answer:

x=3 and 1/2

Step-by-step explanation:

4x+7y=-14

8x+5y=8

2(4x+7y=-14)

8x+14y=-28

8x+5y=8

9y=-36

y=-4

8x+5(-4)=8

8x-20=8

8x=28

x=3 and 1/2

Answer 2

Answer: A. x=3 and 1/2

Step-by-step explanation: (Happy to help) (0.<)

Related Questions

PLZ WILL GIVE U BRAINS LOL

Answers

Answer:

i think this is what your asking but everytime the original figure goes up by one the scaled copy increases by 7 so if i am correct the answer should be a 1:7 ratio

Step-by-step explanation:

im built different

Answer:

i am not sure but i know its something with 7

Step-by-step explanation:

we know that 7 and 49 if you divide 91 and 13 that gives u seven as well :)

i am not sure what the real answer is but it can possibly be 7 over 100 XD

Need help asapppppppp

Answers

Answer:

10

Step-by-step explanation:

The first one should be correct

Justin uses 4 drops of Mio for 16 ounces of water. If he is planning to flavor 640 ounces of water, how many drops of Mio should Justin use to get the same amount of flavor?
a. 160
b. 0.25
c. 16
d. 10,240

Answers

D ur welcome man/gale

Answer:

160.

Step-by-step explanation:

For every 16 ounces of water, 4 drops of Mio

Simplify

For every 4 ounces of water, 1 drop of Mio.

Divide

Divide 640 by 4.

Solve

160 is the answer.

if f(x) = –5x2 + 8x + 11 then find f(–3).

Answers

-5(-3)^2+ 8(-3)+11
-5(9)-24+11
-45-13
f(-3)=-58
It is going to be -58

correct=brainliest !!!

Answers

Answer:

first on gos in the 3 box

Step-by-step explanation:

Answer:

From Least to Greatest :

-20 3/4

-15 1/2

-14 3/4

-1/4

Step-by-step explanation:

We have four fractions those of which are negative, meaning this question works a bit differently than how most least to greatest questions would work by. When dealing with negatives, you have to go backwards, or in other words, the highest number would be the least and the lowest number would be the greatest. This is due to the negative rule, that it's sort of like fighting to zero first than instead of fighting to a great and huge number. With this information, we can answer our question.

-20 3/4 is the highest number, but since we are dealing with negatives it is more far from zero, therefore making the least greatest.

Following up with -15 1/2 , its closer but not as close to the other two numbers.

Now with -14 3/4, getting closer, but not close enough as :

-1/4. This is the closest to zero, therefore it is the greatest number out of the three.

You now have your order.

PLEASE PLEASE PLEASE HELP HELP HELP?!?!?!?!?!!?!??!?!?!

Answers

Answer is A

Step-by-step explanation:

hope that helps

Find the solution of y = –2x + 3 for x = 2.


(2, –10)


(2, 1/2)


(2, –1)


(7, 2)

Answers

Answer:

Step-by-step explanation:

y=-2(2)+3

y=-4+3=-1

(2, -1)

Since x=2
y= -2(2)+3= -1
So (x,y) is (2,-1)

Combine like terms to write an equivalent expression for 4y to the power of 2 + 6x - 2y to the power of 2 + 12x
plz i need answer quick i will mark brainliest

Answers

I think it is 2 y ^ 2 + 1 8 x

Answer:

2y+18x

Step-by-step explanation:

Yw :]]]]]]]]]]]]]]]]

Please help!
Raj wants to take yoga classes. There are two yoga studios that have different membership plans. The first studio charges a fixed amount of $70 per month, and you can takes as many classes as you want for no additional charge.
The second studio charges a smaller initial fee plus an additional fee for each class taken. The monthly price (in dollars) of a second studio as a function of the number of classes taken is given by the following table of values:

*Graph shown below*

Which studio charges more for each additional charge?
Choose 1 answer:
A. The first studio
B. The second studio
C. They both charge the same for each additional class

Raj wants to take 8 classes each month. Which studio is cheaper for him?
Choose 1 answer:
A. The first studio
B. The second studio
C. The both cost the same for 8 classes a month

Answers

Answer:

Which studio charges more for each additional charge? B

Raj wants to take 8 classes each month. Which studio is cheaper for him? A

Step-by-step explanation:

Studio one has no additional charge.

Studio two 8 classes would be 100 dollars more than the 70dollar flat fee of studio one.

The correct answer is the first studio and The answer is the second studio.

We have given that,

Raj wants to take yoga classes.

There are two yoga studios that have different membership plans.

The first studio charges a fixed amount of $70 per month, and you can take as many classes as you want for no additional charge.

What is the graph of the linear equation show?

The graph of a linear equation in two variables is a line (that's why they call it linear

Studio one has no additional charge.

Studio two 8 classes would be 100 dollars more than the 70dollar flat fee of studio one.

Which studio charges more for each additional charge.

The correct answer is the first studio

and for a second,

Raj wants to take 8 classes each month.

Which studio is cheaper for him

The answer is b that is the second studio.

The correct option are,

The correct answer is the first studio and The answer is the second studio.

To learn more about the graph visit:

https://brainly.com/question/4025726

#SPJ2

24 ≥ 58 + 5(x - 3.8) help please

Answers

Answer is x ≤ -3 !!!!!
X ≤-3 is the answer.

What percent of 56 is 224?

Answers

Answer: 125.44

Step-by-step explanation:

(.56) x 224

224/56=p/100 224x100 divided by 56=400. The answer is 400

Can someone plz help me with this one problem plz!!!

Answers

Answer:

Yes

Step-by-step explanation:

y = -6

x = -7

Replace the variables with the numerical values:

-6 = -7 + 1

Solve:

-7 + 1 = -6

Final answer:

-6 = -6

Therefore, (-7, -6) is a solution to the equation y = x +1

The word structure means .. ( IT NOT C AND D)
A shape
B job
C spider silk
D varies

Answers

i think the answer is a

In 1-3 sentences, explain how we know that the volume of a pyramid is V=1/3Bh

(you don’t have to write them for me, but i need help in like...an explanation?)

Answers

Answer: The formula for finding the volume of a pyramid is V=lwh/3. Taking this into consideration, the length times width times height must be one, which is then put over three.  

Step-by-step explanation:

Coconuts were on sale, 5 for $4.45. Pineapples were on sale, 4 for $3.40. Which of the following is true?
A. Coconuts are 4¢ more each than pineapples.
B. Coconuts are 4¢ less each than pineapples.
C. Coconuts are each 85¢.
D. Pineapples are each 89¢.

Answers

Answer: D

Step-by-step explanation: If you do 4/4.45 you get a number approximate to 89 cents. Answers A and B you can cross of because coconuts are 5 cents more than pineapples

i think the answer is d

please help me with this for brainliest

Answers

Answer:

Its asking you the opposite of -8 which is positive 8

Step-by-step explanation:

Then you multiply it by five and get the opposite of -40, positive 40

Its asking you the opposite of -8 which is positive 8

Step-by-step explanation:

Then you multiply it by five and get the opposite of -40, positive 40

Pls, help! I can paste the link and the image https://web.kamihq.com/web/viewer.html?state=%7B%22ids%22%3A%5B%221iI3pNZYitFBZtDpnJyxOACuig_TP6Ter%22%5D%2C%22action%22%3A%22open%22%2C%22userId%22%3A%22106211068388494764911%22%2C%22resourceKeys%22%3A%7B%7D%7D&kami_user_id=13185505

Answers

Answer:

B

25/10= 2.5

Step-by-step explanation:

answer is B thank you for your time

Solve for x:

-4x – 12 > 36

Answers

Answer:

x<−12

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

The U-pick farm lets us pick 4 pounds of strawberries for 5 dollars. How many pounds of strawberries can we pick for one dollar?

Answers

Answer:

0.8 lb

Step-by-step explanation:

Answer:

Step-by-step explanation:

convert pounds to ounces. so 4 pounds = 64 ounces.

we know 5/5 = 1 and we want 1 dollars woth. so divide the other side by 5.

so 64 ounces / 5 dollars =12.8 ounces, which equals 0.8 pounds.

A EZ one
......
(^.^) pt 3

Answers

Answer:

y=2x

Step-by-step explanation:

Answer:

y = 2x

because y is two times the amount of x

The graph shows y as a function of x. Suppose a point is added to this graph. Which choice gives a point that preserves
the function?
A)(-9,3)
B)(-6,0)
C)(3, 3) D)(5, 4)

will give brainliest

Answers

i think your answer is c

What is the Linear Function?

Answers

Answer: y = -0.2x + 1

Step-by-step explanation: Find the y intercept (b) and then find the slope (m) and use the equation y = mx + b.

Nicole earns $7 for washing a car and $10 for washing a van. Nicole washes 9 vehicles and earns $75. How many cars and how many vans did she wash?
heh I'm baddddd at math so.. help again, and plzz more than one person answer so I can give brainliest :)

Answers

Answer: She washed 5 cars and 4 vans

Step-by-step explanation: 7*5=35 and 10*4=40. 35+40=75

nicole washed 5 cars and 4 vans

pls help i need helpppppp

Answers

Answer:

64

Step-by-step explanation:

50 + 14 = 64

64 - 50 = 14

Answer:

14 = 50 - ?

Step-by-step explanation:

? is 64

HELP I WILL GIVE YOU BRAINLEST

Answers

Answer:

Its b

Step-by-step explanation:

B
Be cause the opposite of a negative is positive

PLEASE HELP A GIRL OUT!!!

Answers

Answer:

The answer is 14 and I got that by multiplying 7 and 12 then dividing 84 by 6.

Find the difference.

- 1.89
- 0.97

A) 1.12

B) 0.92

C) 9.1

D) 0.82

Answers

Answer:

A

Step-by-step explanation:

1.8|9

0.9|7

?.?2

1.|8

0.|9

Carryover the one

0.|18

0.|09

1.12, which is A.

Hope it helped!

Lana wants to graph the height of an amusement park ride as it travels along the track.

A. The ride begins by climbing slowly up a hill.
B. It moves straight along a flat piece of track.
C. The ride glides quickly downhill.
D. It slowly climbs another hill.

Drag a segment to each box to show the shape of the graph for that interval.

Answers

I can’t do this for you, you have to drag the segments into the boxes. The fifth over is A. then you do the first line segment. Then the third. for D you do the fifth over
Ok I got this it is A

Find the quotient. Use a model to explain your answer
1/6 divided by 3 = ?

Answers

Answer:

1/18

Step-by-step explanation:

(1/6)/(3/1)

flip the 3 and the one and multiply

=(1/6)(1/3)

1(1)=1

6(3)=18

The answer for 1/6 divided by 3 = 1/18

What transformation is shown below? (Look carefully at the vertices.)
can't be determined
translation
reflection
rotation

Answers

This is translation.

The figure shows reflection.

What is transformation?

Four distinct ways to alter the shape and/or position of a point, line, or geometric figure are collectively referred to as transformations. The object's final shape and location are referred to as the Image under the transformation, while the Pre-Image is its original form.

Different types of transformation are reflection, rotation, and translation.

Given a graph,

condition for Translation: translation is when any figure not change its shape, size and orientation and can be any direction.

Condition for Rotation: without changing the size and shape of any object and rotate about a fixed point is rotation.

Condition for reflection: without changing shape and size of any object and flip it across a line.

Hence according to the question the figure is flip across a line without changing its size and shape, so it is reflection.

Learn more about transformation;

https://brainly.com/question/11709244

#SPJ2

Other Questions
Who are them???????? How does erosion, along with weathering, change the surface of the Earth? pls, help due in 30 mins!! it is math. What value of x is in the solution set of -2(3x + 2) > -8x + 6? Three-fourths of the students in Aaliyah's class belong to a social network. There are 15 students in her class that belong to a social network. Newton's second law says that when an___force is applied to a___ it causes it to____ Claire buys a computer that is on sale for 25% off the original price. The original price is $185 more than the sale price. What isthe original price of the computer? Which quote best reflects the importance of the 1960 presidential debate between John F. Kennedy and Richard M. Nixon? Find an exponential function that passes through (2, 16) and (6, 256) with an asymptotey=0. The largest religious structure in the world found in cambodiaA. Taj Mahal B. Hagia SophiaC. Mt. FujiD. Angkor Wat Tom has a part-time job. On Wednesday, Tom earned $20.50, and onThursday he earned $36.21. On Friday, Tom earned twice as much as hedid on Wednesday. How much did Tom earn altogether for the three days? Will the blood in my clothes come out if I put them on the cold setting HELPPPP PLEAASE IM STUCK DUE IN 15 MINUTES I need help on this ASAP please Pls answer asap! It's due in 4 minutes! Iris, a calendar year cash basis taxpayer, owns and operates several TV rental outlets in Florida, and wants to expand to other states. During 2018, she spends $14,000 to investigate TV rental stores in South Carolina and $9,000 to investigate TV rental stores in Georgia. She acquires the South Carolina operations, but not the outlets in Georgia. As to these expenses, Iris should: Group of answer choices Expense $9,000 for 2018 and capitalize $14,000. Capitalize $23,000. Capitalize $14,000 and not deduct $9,000. None of the above. Expense $23,000 for 2018. HELP PLS NOW I WILL GIVE BRAINLIEST The nth term of a sequence is 3n-1The nth term of a different sequence is 30nFind the only number that is in both of these sequences. Factor: 2x^2-3x-20=0 Shirts are 30% off. The original price of one shirt is $12. What is the totalcost, in dollars, of 2 shirts, at the sale price, including a 5% sales tax? *