Mathematics Middle School

Pls answer and thanks!!

Use addition to solve the linear system of equations.

3x - y = 6

y = x - 4

Answers

Answer 1

Answer:

Problem:

Solve 3x−y=6;y=x−4

Steps:

I will try to solve your system of equations.

y=x−4;3x−y=6

Step: Solvey=x−4for y:

Step: Substitutex−4foryin3x−y=6:

3x−y=6

3x−(x−4)=6

2x+4=6(Simplify both sides of the equation)

2x+4+−4=6+−4(Add -4 to both sides)

2x=2

2x

2

=

2

2

(Divide both sides by 2)

x=1

Step: Substitute1forxiny=x−4:

y=x−4

y=1−4

y=−3(Simplify both sides of the equation)

Answer:

y=−3 and x=1

Step-by-step explanation:

Hope this helped you

Answer 2
y=-3,x=1 because of the work

Related Questions

A certain coin is a circle with diameter 32mm . What is the exact area of each side of the​ coin?

Answers

Answer:

1.32572mm2

Step-by-step explanation:

Answer:

A≈8.04×10-4m²

Step-by-step explanation:

Actual math question help....

Answers

Answer:

6

Step-by-step explanation:

first we need to find the volume using this formula V=Bh

V=(3/2)(2)

V= 3 cm³

now divide

3/.5= 6

so 6 1/2 cm cubes will fit

Answer:

6 I think.

Step-by-step explanation:

I may be wrong but I hope this helps :)

dont use for points or else i will report

Answers

Hope this helps ;))))

Answer:

108 Square feet

Step-by-step explanation:

4 ×8=32

3×4=12÷2=6

6×2=12

5×8=40

8×3=24

32+12+40+24=108

No pic/link just type answer pls.

Answers

i got 4.42 hope this helps:)

I really need help with this question!!!!

Answers

Answer:

3) 7853.98

4) Probably around 4

Step-by-step explanation:

Hope this helps

Pls mark me brainliest

Hey, read the image...

Answers

I, flameflam, have read the image ;)

Calculate Mechanical Advantage To lift a crate, a pulley system exerts a force of 2,750 N. Find the mechanical advantage of the pulley system if the input force is 250 N

Answers

Answer:

2750/250= 11. Therefore, your mechanical advantage would be 11.

Step-by-step explanation:

what number subtracted from 30 leaves 7 more than 3/5 of 25

Answers

The answer is 8. Because 3/5 * 25=15. 15+7=22. 30-22=8.

Answer:

11

Step-by-step explanation:

30-x=3/5*25+7

30-x=12+7

30-x=19

-30   -30

-x=-11

x=11

elect the answer with BOTH correct answers (the product in standard form and the product in Scientific Notation). (8.08×106)×(7.5×10−2)
A) 60,600;6.06×105
B) 60,600;60.6×104
C) 606,000;6.06×105
D) 606,000;60.6×104

Answers

Question: elect the answer with BOTH correct answers (the product in standard form and the product in Scientific Notation). (8.08×106)×(7.5×10−2)
A) 60,600;6.06×105
B) 60,600;60.6×104
C) 606,000;6.06×105
D) 606,000;60.6×104





Answer: a or b

Please help me

It’s probability

Answers

Answer:

32% or 8/25

Step-by-step explanation:

The answer is 32% or 8/25
I hope this helped you out

Which numbers are irrational? Check all that apply.

Answers

Answer: 3.14,√80, √12 are all irrational.

b d e f are the answers please make me brainliest <3

In a equation, y varies directly as x varies. If y = 84 when x = 14, what is the value of x when y = 120
A. 20
B. 15
C. 10
D. 5

Answers

D. 5. I could be wrong though, idrk how to solve it
It’s A
the ratio is 6:1 so 120 divided by 6 is 20

The question in image... again, please help

Answers

Answer: it looks like D

Step-by-step explanatio

*Urgent* im not sure look at the picture

Answers

Answer:

B) x^2-64

Step-by-step explanation:

Answer: B


Step by step explaining :

Evaluate.
–4² – (-3)² =

Answers

the answer is -25

-16 - (-3)^2
-16 - 9
-25
-25

4 x 4 = 16
3 x 3 = 9

-16 - -9 = - 25


Cecilia’s rectangle measures 3 1/2 units by 2 1/3 units. What is the area?

Answers

the answer to this question is 8.75
3 1/2 x 2 1/3
7/2 x 7/3
49/6
8 1/6 is the area

please help, I give brainliest. thanks

Answers

I think it’s 3/8 I’m not sure tho good luck
It’s 13/100
Because you have to find 1/3 of 2/5
I turned them in percentage so it was easier then turned it to fraction to the simplest form.

Which expression is equivalent to 2 + 2m + m + 6 + m?
2(m + 3)
4(2 + m)
8 + 2m
12m

Answers

Answer:

24m+30

Step-by-step explanation:

i think i dont know for sure.

I’m not sure this is the correct answer but I think it’s 4(2 + m)

please help
Journalists can report the news via social media.

A. True
B. False

Answers

true A im pretty sure

Answer:

True

Step-by-step explanation:

a snack-sized bag of M&M's contains 5 green, 6 yellow, 8 blue, and 7 brown. What is the probability of pulling out a blue one

Answers

Answer:

38%

Step-by-step explanation:

8 out of 21 is 38

It is 38 pls give brainliest

which of these measures is the best measure of variability for the dot plot

Answers

Answer:

b

Step-by-step explanation:

most simply by finding the range , or difference between the highest and lowest values.

your answer for this will be b.) interquartile range

PLEASE HELP MEEEEEE!!!!!

Answers

It’s d hope this helps

Answer

d.11(x+5)

Step-by-step explanation:

Which measure of center would you use to describe a data set with no extreme values and no big gaps?

Answers

Answer:

The median

Step-by-step explanation:

The median always exists. The median does not have to be one of the data

Answer:

The median

Step-by-step explanation:

The median is never affected by any outliers

Marvin lives in Stormwind City and works as an engineer in the city of Ironforge. In the morning, he has
3 transportation options (teleport, ride a dragon, or walk) to work, and in the evening he has the same
3 choices for his trip home.
If Marvin randomly chooses his method of travel in the morning and in the evening, what is the probability that he teleports at least once per day?

Answers

I copied your question and put in the Brainly search bar and your question was already answered. The probably that he teleports at least once per day would be P = 5/9.

Top: Before you make a question look your question up to see if it’s already been answered, so you don’t waste any points.

The refrigerator part of a refrigerator freezer has a volume of 27 cubic feet. The freezer part is 2 feet high, 2 feet deep, and 3 feet wide. What is the total volume of the refrigerator freezer?
HELP ME PLEASE !!!!!
I WILL MAKE YOU BRAINLIEST!!!!

Answers

the answer is 39.
do 2x2x3 (answer is 12) then 27+12.

Your bedroom wall is 171 inches wide. You want to hang two posters, each 42 inches across, with an equal space between each poster and the wall edges.

How many inches of space should you leave between the wall edge and each poster?

Answers

Your answer should be 29

Triangle HIJ is dilated by a scale factor of 55 to form triangle H'I'J'. Side I'J' measures 7575. What is the measure of side IJ? (marking brainliest)

Answers

Answer:

If triangle HIJ is dilated about the center of the triangle to create triangle H'I'J', dilated line A'B' will be parallel to AB.Option (D) is correct.

Given:

The options are as follows,

(A). be perpendicular to AB.

(B). lie on the same line as AB.

(C). shift four units to the left.

(D). be parallel to AB.

Step-by-step explanation:

If we dilate triangle HIJ then the dilated triangle  is bigger than the triangle HIJ.

The triangle HIJ is similar to triangle  to each other.

So the line  is parallel to side AB.

33344555778654444456777643322444566665

-5 = 1/3(-1-w)

pls help! i will give brainly

Answers

solve for w
divide each side by factors that don’t contain the variable
w = 14

Answer:

w=14

Step-by-step explanation:

Let's solve your equation step-by-step.

−5= 1/ 3 (−1−w)

Step 1: Simplify both sides of the equation.

−5= 1/ 3 (−1−w) −5=( 1/ 3 )(−1)+( 1/ 3 )(−w) (Distribute)

−5= −1/ 3 + −1/ 3 w

−5= −1/ 3 w+ −1/ 3

Step 2: Flip the equation.

−1/ 3 w+ −1/ 3 =−5

Step 3: Add 1/3 to both sides.

−1/ 3 w+ −1/ 3 +1/  3 =−5+ 1/ 3

−1/ 3 w= −14/ 3

Step 4: Multiply both sides by 3/(-1).

( 3 −1 )*( −1/ 3 w)=( 3/ −1 )*( −14/ 3 )

w=14

Answer:

w=14

 

Darian is multiplying 34 by 12.

Use the drop-down menu to complete the statement.

and the choices are greater than and less than

Answers

Answer:

Less

Step-by-step explanation:

Can u pls mark me brainliest

Answer:

LESS THAN

Step-by-step explanation:

[tex]\frac{3}{4}* \frac{1}{2} =\frac{3}{8}[/tex]

[tex]\frac{3}{8}[/tex]  IS  LESS THAN  [tex]\frac{3}{4}[/tex]

paul is going to a college where tuition for one year is $14,200. He has a scholarship worth $1,500 and a grant worth $200. He earns $125 a week at this job how many weeks does paul need to work to pay 50% of the remaining tuition.
hurry pl ill make brainliest

Answers

Answer: 50 weeks

First, since he has a scholarship and a grant, those are used to pay off college debt. So $1,500 + $200 = $1,700

Now we subtract that from the total debt.

$14,200 - $1,700 = $12,500

Now since we're only seeing how much can pay for HALF of his debt, we divide $12,500 by 2.

$12,500 ÷ 2 = $6,250

Finally, we have to divide by the amount of money he earns in a week to find the total weeks.

$6,250 ÷ $125 = 50

50 weeks!

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