Mathematics Middle School

Solve the system of equations below by elimination. Write your answer as an ordered pair. e.g. (2,3)

Solve The System Of Equations Below By Elimination. Write Your Answer As An Ordered Pair. E.g. (2,3)

Answers

Answer 1

Answer:

(45,35)

Step-by-step explanation:

1 - Stack the equations on top of each other

3x - 4y = -5

4x + 4y = 40

2 - We can eliminate by subtracting the bottom equation from the top equation

 3x - 4y = -5

- 4x - 4y = 40

3 - The y's cancel out, leaving us with...

 3x = -5

- 4x = 40

4 - Continue simplifying

-1x = -45

5 - We can switch the -1x with -x to make things simple

-x = -45

6 - Positize (make it positive) the statement

x = 45

7 - Halfway there! Substitute the x value into one of the equations

(3 * 45) - 4y = -5

8 - Solve

135 - 4y = -5

Minus 135 on both sides

-4y = -140

Divide by -4 on both sides

y = 35

9 - Here is your answer!!

x = 45

y = 35

(45,35)

Answer 2
(45,35)
hope this helps

Related Questions

You AND six friends play on a basketball team. A sponsor paid $100 for the league fee for the season, x dollars for EACH player’s T-shirt, and $68.25 in total for trophies. Write a simplified expression for the total amount the sponsor paid for the season

Answers

Answer:

7x + 168.25

Step-by-step explanation:

Umm I wasn't completly sure but good luck!

7x + 168.25 is the answer

What are the vertices of the resulting image A’B’C’D’E after rotating the figure 90 degrees about the origin?

Answers

Answer:

45

Step-by-step explanation:

45 :))) hope that helps

Valentino needs 4 1/2 pounds of chicken for a recipe. He already has
2 3/4 pounds of chicken. How many more pounds of chicken does Valentino need?

Answers

Answer:

Valentino needs 1 [tex]\frac{3}{4}[/tex] more pounds of chicken for the recipe.

Step-by-step explanation:

You just need to know how to subtract fractions.

Valentino needs 4 and 1/2 pounds of chicken for a recipe, and he already has 2 and 3/4. We want to know how many more pounds of chicken we need, so you subtract.

4 1/2 - 2 3/4 = 4 2/4 - 2 3/4

= 1 3/4

Valentino needs 1 and 3/4 pounds of chicken still.

Answer:

c

Step-by-step explanation:

PLZ HELP 30 PTS ANSWER FAST AND I GIVE BRAINLIEST AND 5 STARS TO THE PEOPLE WHO DON'T GET BRAINLIEST!!!!!
Mr. Jacobs is going to make a histogram of the test scores from the last math test he gave. He plans to first organize the data into a stem-and-leaf plot and then make the histogram from the stem-and-leaf plot. The test scores are listed below.

79, 82, 65, 61, 94, 97, 84, 77, 89, 91, 90, 83, 99, 71, 68, 77, 87, 85

Which of the following histograms represents this data?

Answers

Answer:

4

Step-by-step explanation:

Answer is 4 hope this helps

help mm m mn30id8u9309ikhojkri85ujj5t98ujt

Answers

Answer:

94%

Step-by-step explanation:

The big block is 10 by 10 or 100 little blocks

94 blocks are shaded

94/100 blocks are shaded

Percent means out of 100

94%

Answer:

The answer is 94%

Step-by-step explanation:

The square is 10 by 10, so there's 100 small squares and there's 6 missing

100-6 is 94.

help i'll mark brainliest thank you

Answers

Answer:

Q1: B

Q2: D

Q3: B

Q3: C

explanation:

Answer:

Q1 : D = 4.5

Q2: A and C = 22/7 and 3. 14

Q3: C = 36

Q4: B = 28.5

Step-by-step explanation:

plz mark brainliest :)

Answer this question please :)

Answers

Answer:

Step-by-step explanation:

9*7=63

63

triangle area=21

63+21=84

Answer:

Its 63

Step-by-step explanation:

Area is founded by multiplying the width and height. Therefore, 9 * 7 is 63. Thus is ur answer.

The perimeter of a square is 100 feet. What is the length of one of its​ sides? Explain your work.

Answers

Answer:

25

Step-by-step explanation:

to find the perimeter you add up all the sides and since it's a square and squares have all four equal sides

you just divide 100/4=25

4 sides of a square. Each side of a square is equal. You said the perimeter is 100. So if we put it in an equation, lets say S = Side. 4s=100. Now we just divide. s=25

Each side is 25

Thank or brainliest if helpful :D

Explain and answer pls :)

Answers

36 is the only logical answer

Answer:

first write boys/girls=2/3 then we know there are 24 boys so; 2/3=24/girls .so we have 24×3/2=36= girls number.

Answer questions #13 & 14. Number 13: What is the system shown? Number 14: Type the correct answer in the box. THE IMAGE BELOW SHOWS BOTH QUESTIONS.

Answers

Answer:

124

Step-by-step explanation:

248)

The answer is definitely 124

What is the perimeter of the parallelogram?

Answers

Answer:

16

Step-by-step explanation:

4units x 4units = 16

I got 16. I think it’s the correct answer

Which rule about the sign of the quotient of positive and negative decimals is correct?

Answers

Answer:

negative decimal

Step-by-step explanation:

A positive decimal divided by a negative decimal is always a negative decimal

Answer:

Even though you didn't show the answer choices heres something that might help: A negative sign multiplied by another negative sign would give you a positive sign.

Step-by-step explanation:

Find the area of the parallelogram:

Answers

Answer:

117

Step-by-step explanation:

13x9

A=bh
B= 13in
H=9in
A= 9*13=117in2

What is the value of y in the triangle?



Enter your answer in the box. Round your final answer to the nearest hundredth.

y =
ft

A right triangle. The hypotenuse is labeled as 15 feet. The perpendicular is labeled as y. The alternate base angles are labeled as right angle and 26.5 degrees, respectively.

Answers

55°
We have to keep in mind, that the sum of three angles of a triangle is always 180°. This data will help us to solve this mathematical problem. Hence,the value of y
All the angles add up to 180 degrees therefore the answer is
55 degrees

PLEASE HELP IM BEGGING YOU PLEASEEE THABK U SO MUCH

Answers

Step-by-step explanation:

not sure for the answer but take how many triangles there are if they are all same same size then use this equation x÷t=a x is 360° t is how many triangles in the octagon and a is ur answer

Angle a Central angles are 22.5 degrees. 360 divided by 16

Angle b 180-(90+22.5) = 67.5 degrees

easy math please help i'll mark brainliest

Answers

Answer:

D, D, A, C

Step-by-step explanation:

Congruent means equal.

T and r are alternate angles

Vertically opposite angles are equal

Y is 47 degrees because since the full angle is 90 degrees, subtract:

90-43 = 47

Hope this helps :)

-jp524

47 I hope this helps you

Brainliest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

I got 1.2 I found this because the smaller model is 60% the size of the larger model same with the side NJ
I’m pretty sure it is 5.4

Answer for free Brainly coins and brainliest later URGENT! :)

Answers

Answer:

36

Step-by-step explanation:

Answer:

In total there are 36 girls.

Step by step explanation:

We apply the proportion.

for every 2 boys there are 3 girls, therefore the rule of three simple applies.

2 boys 3 girls

  Boys ??? girls

it is multiplied crossed where both ends have data, and the result is divided by the remaining number, being:

3 x 24 = 72

72/2 = 36

Refer to the image below.

Answers

Answer:

Median and mode because it is the digit in the middle aka the median and because it is the number that it is the most repeated aka the mode

Step-by-step explanation:

Answer: mode and median

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

answer this math question asap pls​

Answers

Answer:

a=3/4

Step-by-step explanation:

1. Get 2/3a by itself.

•Turn 1/3 to 2/6 by multiplying 1/3 by 2/2.

•Because you only add and subtract like denominators

This will make it look like:

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

Then, add 1/6 to both sides to get 2/3a by itself.

It'll look like this:

2/3a = 3/6

2. Get a by itself.

•Multiply the reciprocal (opposite) of 2/3 to get a alone.

This will look like:

(3/2) • 2/3a = (3/2) • 3/6

a = 18/24

3. Simplify.

Find the largest number that can simplify the equation.

For example, 18 ÷ 3 = 6, and 24 ÷ 3 = 8.

But the largest number you can divide both sides by is 6.

18 ÷ 6 = 3 and 24 ÷ 6 = 4.

3/4.

the answer is a= 3/4

1. to replace a variable in a mathematical expression with an actual value
variable
2. a value of the variable that makes an algebraic sentence true
solution
3. a system for simplifying expressions that ensures that there is only one right answer
order of operations
4. a letter used to represent an unknown number or quantity
equation
5. a mathematical statement that shows two expressions are equal using an equal sign
substitute

Answers

Answer:

what is the question so i can help you, i'm confused

How many terms are in each factor of the expression 9(7 + 2x)?

Answers

Answer:

2 terms i believe if i am wrong i apologize

Step-by-step explanation:

.

It’s two terms but I might be wrong

Which expressions are equivalent to
62
?
Select all that apply.
O 6-8
7.12
6-2
6
7
6
712
712

Answers

I don’t understand eaither sorry

- 11 2/3 × ( - 4 1/5 ) =


44 2/15
-49
44 2/15
49​

Answers

Answer:

the answer is -49

Step-by-step explanation:

........................................

Answer is -49

Pemdas and a scientific calculator go a long way

Consider this expression.

6 x +24

Which of the following are equivalent to the expression?
Select the three equivalent expressions.

A. 6(x +4)
B. 6(x + 24)
C. 3(12 + 2x)
D. 2(3x + 12)
E. 3х + 3 + 20 + 4х
F 4x + 12 + 2x + 12

Answers

A
D
F
That is the correct answer
It would be F,B,D because they all make sense together all you have to do is solve them but these are correct

trying to get missing assignments done

Answers

Answer:

The answer to this question is B

Step-by-step explanation:

I hope it helps

2 __ a solution of 4 = k/4

is it or is it not

Answers

[tex]k = 16[/tex]

Step-by-step explanation:Question

[tex]4 = \frac{k}{4} [/tex]

First, make k as the Subject

[tex]4 \times 4 = k[/tex]

Now simply Solve it

[tex]k = 16[/tex]

Hope this helps you.

Have a nice day!

Good luck on your Assignment!!

Yes it is because 2 4s = 16

answer asap please and thank you look at the image

Answers

Answer:

4x=36

Step-by-step explanation:

4x=36

x=36/4

x=9

Other equation

36/4=x

for example:

6x=36
36/6=6

you could also use any of the following:

1x=36
36/1=36

2x=36
36/2=18

3x=36
36/3=12

4x=36
36/4=9

etc.

tryyyyy hardddddd!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

980

8,700 books had minor damage

6. −7(x−6)=−70

7. Solve for n *(4 Points) 9+n=−2

Answers

Answer:

6. x = 16

7. n = -11

Step-by-step explanation:

6. -7(x-6)=-70

= -7x + 42 = - 70

= - 7x = - 70 - 42

= -7x = -112

= -7x/-7 = -112-/7

= x = 16.

7. 9 + n= - 2

= n= -2 - 9

= n = -11

Other Questions
Your nervous system includes the brain and spinal cordA. TrueB. False Select the common noun(s). I let Todd Flanders borrow my sweater. Is each statement true for OA? Drag true or false below each statement Which of the following correctly maps figure ABCD onto figure EFGH? Select two that apply. Mosa and her team find out that all the receivers in North America have moved west about an inch. What does this prove? Brasil es un ______ de Sudamrica. Wieters Industries manufactures several products including a basic case for a popular smartphone. The company is considering adopting an activity-based costing approach for setting its budget. The company's production activities, budgeted activity costs, and cost drivers for the coming year are as follows:Activity Activity Overhead $ Cost Driver Cost Driver QuantityMachine setup $200,000 # of setups 800Inspection 120,000 # of quality tests 400Materials receiving 252,000 # of purchase orders 1,800The budgeted data for smartphone case production are as follows.Direct materials $2.50 per unitDirect labor $0.54 per unitNumber of setups 92Number of quality tests 400Number of purchase orders 50Production 15,000 unitsRequireda. Calculate the activity rate for each cost pool.b. Calculate the activity-based unit cost of the smartphone case. show using dots to illustrate high population density and low population density in the boxes provided in answer to guide questions NEED HELP ASAP!!use the vertical line test to determine if the relation whose graph is provided is a function(graph and answers pictured) Identify and explain the phenomenon represented by the arrows diagram . Which two lines in the excerpt use dramatic irony?Romeo and Julietby William Shakespeare (excerpt)CAPULET: How now, my headstrong! where have you been gadding?JULIET: Where I have learn'd me to repent the sinOf disobedient oppositionTo you and your behests, and am enjoin'dBy holy Laurence to fall prostrate here,And beg your pardon: pardon, I beseech you!Henceforward I am ever ruled by you.CAPULET: Send for the county; go tell him of this:I'll have this knot knit up to-morrow morning.JULIET: I met the youthful lord at Laurence' cell;And gave him what becomed love I might,Not step o'er the bounds of modesty. HELlLlLlPllLl is it 10219 I just want to make sure or is it b? WHATS THE ANSWER ????? the value of each square root Please help i'm struggling with this! Suppose the population of a small town is 567 in 2011. The population DECREASES at arate of 5% every year. What will be the population of the town in 2021? Round your answerto the nearest whole number. What is the measure of each angle of a regular 24-gon? If necessary, round to thenearest tenth. Who became the emperor/leader of Japan after the emperor Go- Daigo was defeated during the Japanese civil war?A- Kublai Khan B- Ashi Hoto C- AshikaganD- Hirohito Ponds and lakes are part of marine ecosystem.True or false ?