Mathematics Middle School

Solve the System

2(y-x)=5+2x

2(y+x)=5-2y


A) (1/2,3/2)

B) (-2,2/3)

C) (-1/2,3/2)

D) (1/2,-3/2)

Must do Step-By-Step Explantination I need Help on this

Answers

Answer 1
Answer is D because I know
Explaintion: trust me
Answer 2

Answer:

[tex]y=\frac{3}{2},\:x=-\frac{1}{2}[/tex]

Step-by-step explanation:

[tex]\begin{bmatrix}5+6x=-4x\end{bmatrix}[/tex]

    [tex]-6[/tex]         [tex]-6[/tex]

[tex]-\frac{5}{10}=-\frac{1}{2}[/tex]

[tex]x=-\frac{1}{2}[/tex]

[tex]\mathrm{For\:}y=\frac{5+2x}{2}+x[/tex]

[tex]\mathrm{Substitute\:}x=-\frac{1}{2}[/tex]

[tex]y=\frac{5+2\left(-\frac{1}{2}\right)}{2}-\frac{1}{2}[/tex]

[tex]y=\frac{3}{2}[/tex]

[tex]\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}[/tex]

[tex]y=\frac{3}{2},\:x=-\frac{1}{2}[/tex]

Related Questions

create your own real-world situation that could be modeled by the graph below. (someone help i’ll mark you brainlist or whatever its called)

Answers

Answer:

We’ll go simple

X-distance driving (miles)

Y- time (minutes)

Step-by-step explanation:

for every 2 minutes, you drive 6 miles at a constant rate

Write three ratios that each diagram can represent.

Answers

Step-by-step explanation:

for the hearts and demands it's 3 hearts to 5 diamonds, 6 hearts to 10 diamonds, 12 hearts to 20 diamonds

for 2.

3 pencil to 2 pen, 6 pencil to 4 pen , 12 pencil to 8 pen

For 1. 3:4 6:8 and 9:12
For 2. 3:2 6:4 9:6
Hope this helps!

Could you help me please!!

Answers

Answer:

A

Step-by-step explanation:

Area of a triangle is base X height divided by 2.

In other words: 12.5 X 3.7 divided by 2, which equals 23.125 km squared.

(7,-3) is translated 4 left and 6 up what is the new location

Answers

Answer:

(4, 3)

Step-by-step explanation:

f a point is translated to the left it must be subtracted from the original coordinates because the left is getting closer to the negative side of the graph. If it is being translated up that number should be added, so (7-3,-3+6) which is (4,3).

How to solve the inequality -8y ≤ 40

Answers

- 8y ≤ 40

y ≥ 40 / (-8)

y ≥ - 5

S = [-5 ; + inf [

or

.......... [ -5 XXXXXXXXXXX

This is how to solve the inequality

DONT SCAM ME WILL GIVE BRAILIST

The dot plots below show the test scores of seventh- and eighth-grade students:

Dot plot for Grade 7 shows 6 dots on score 50, 4 dots on score 60, 6 dots on score 70, and 4 dots on score 80. Dot plot for Grade 8 shows 7 dots on score 60, 4 dots on score 70, 4 dots on score 80, 3 dots on score 90, and 2 dots on score 100.

Based on visual inspection of the dot plots, which grade, if any, appears to have the higher mean score?

Grade 7
Grade 8
Both groups show about the same mean score.
No conclusion about mean score can be made from the data.

I think its grade 8

Answers

Answer:

1. attachment↑

its grade 8

Step-by-step explanation:

mark me as brainliest if it helps

Based on visual inspection of the dot plots, it appears that Grade 7 has a lower mean score than Grade 8.

What is dot plot?

A dot chart, also known as a dot plot, is a type of statistical chart that consists of data points plotted on a relatively simple scale, typically using filled in circles.

Based on a visual examination of the dot plots, Grade 7 appears to have a lower mean score than Grade 8.

In Grade 7, the majority of students scored in the 70s, with fewer scoring in the 50s and 80s, whereas in Grade 8, the majority of students scored in the 60s, with fewer scoring in the 70s, 80s, and 100s.

This suggests that the mean score in Grade 8 is higher.

Thus, this can be concluded regarding the given scenario.

For more details regarding dot plot, visit:

https://brainly.com/question/22746300

#SPJ3

help me please, due today

Answers

Answer:

Part A: 0.21

Part B: 50

Step-by-step explanation:

Part A:

I would recommend a calculator for this.

Start by adding all the candies which would add to 24. Now take the number of yellow candies, 5, and divide it by 24 which would give us 0.2083, but they want it in hundredths which would be 8 rounded to give us 0.21.

Part B:

The best way is to see by what 24 was multiplied by to equal 200, so divide 200 by 24, which would give us a decimal of 8. Now multiply the number of green candies, 6, by our answer and you would get 50.

Hope this helps!

Answer:
Part A: 0.21
Part B: 50
Step-by-step explanation:
Part A:
I suggest using a calculator for this.
Start by adding all of the candies, that would add up to be 24. Now take the number of
yellow candies, 5, and divide it by 24
which would give us 0.2083, but they
want it in hundredths which would be 8
rounded to give us 0.21.
Part B:
The best way is to see by what 24 was
multiplied by to equal 200, so divide 200
by 24, which would give us a decimal of 8.
Then multiply the number of green
candies, 6 by the answer and you would
get 50.
Good luck, hope you do well!

pls help TvT (x doesn't equal 135 i tried that already)

Answers

Answer:

x=90

3x=90 or 30 im not sure

Step-by-step explanation:

x=90

and 3x=30


i’m pretty sure hope this helps good luck

<33

Garry is building a fence for his neighbor. The backyard requires 172.5 feet of fencing. If each fencing board is 1/2 - foot wide, how many fencing boards will Garry need?
A. 172 boards
B. 86.25 boards
C. 345 boards
D. none of these
PLEASE SHOW WORK !!!!!!!!!!!!!!!!!!!

Answers

Answer:

D. none of these

Step-by-step explanation:

172.5 / 1.5 = 115

the answer is c
172.5/.5=345

Answer this for 10 regular points nothing special

Answers

Answer:

Step-by-step explanation:

I think its easier to break it up to find the answer, in doing so, the top rectangle would be 6 units "long", 4 units "tall".

The bottom shape would be 4 units long, and 3 units tall.
*It would be 4 because the two isn't part of the bottom shape, so you would subtract 2 from 6, giving you 4.*

Then you simply multiply:

6x4=24

4x3=12

Now you have the area for both shapes, you would then add them together to get the full shape:
24+12= 36

Therefor: The area is 36 Units. or A.

Hope this helps, Brainliest is appreciated, trying to rank up :)
Have a nice Day! CX

~Mitsuna

The answer is a 36 units squared

please help if you can. I need help with this question, here's a picture of it.

Answers

Answer:

The measure of angle N is A. 30 degrees

Angle N is similar to angle Y, we can assume this by the way the triangles are named (xYz and mNo).

A triangle's inner angles must equal 180.

Angle Y is 30 degrees because 180-90-60=30.

So angle N is also 30 degrees.

Answer correctly and fast!

Answers

Answer: 31.0

Step-by-step explanation:

If the circumference is
36.7, find the diameter.
Round to the hundredth
place. If hundredth
place is zero, type in
zero for hundredth
place.

Answers

Answer:

11.69

Step-by-step explanation:

So, 36.7 is the circumference. To find the circumference you multiply the diameter by pi. So you would divide 36.7 by 3.14. You would then get 11.68........ or rounded to 11.69.

Hope this helps!

Q7: Use the following image to answer the question below:

Answers

Angle 1,3 and angle 2,4 vertical angles. Angle 1,2 and angle 3,4 are adjacent.

Juliette made 3 sculptures. It took her 8 days, and she completed an equal amount each day. What fraction of the sculpture did she make each day?

Answers

Answer:

About 2.67 (2 3/5)

Step-by-step explanation:

8 divided by 3 equals 2 with a repeating 6, so you round it and get 2.67 or 2 3/5.

Hope this helps!!

Draw & label the normal distribution curve for the data: 99, 60, 82, 78, 93, 71, 68, 86, 80, 95, 72, 64

Answers

Answer:

I thank it is 68

Step-by-step explanation:

I hope this helps if it is wrong, please let me now

A rectangular room measures 13 feet by 120 inches. Tonya said the area of the room is 1,560 square feet.

What did Tonya do wrong?

Answers

Answer:

The measurements of a rectangular room are 13 feet by 132 inches.

We have to find the area of the room in square feet.

Area of rectangle with length 'l' and width 'w' is given by "L x W".

Since, length='13' feet and width= '132' inches.

So, we will convert the unit of inches into feet.

As 1 foot = 12 inches

So, 132 inches = 132/12 feet = '11' feet

Area of rectangular room = 13 x 11

= 143 square feet.

Tonya was incorrect because she evaluated the area of room without changing the dimensions. She found the area by  square feet. It is incorrect.

Answer:

20,592 INCHES. First you have to take your 13 feet and times by 12 inches in a foot,, then take that total which is 156 inches times 132 inches to equal Area.  

Step-by-step explanation:

can someone help me solve this?

Answers

Answer:

300

Step-by-step explanation:

help me i need help for this equation

Answers

Answer: 99 square inches

Step-by-step explanation:

i believe you add it all together

Answer:

99 square inches

Step-by-step explanation:

that's the answer

Original price: $55
Discount:?
Sale price: $46.74

Answers

Answer:

15%

Step-by-step explanation:

Given:

Original price: $55

Discount:?

Sale price: $46.74

Formula:

Discount = Original - Sale Price

Discount ÷ Original Price × 100

Solve:

x - 55 - 46.75 = 8.25

8.25 ÷ 55 × 100

Simplify

3/20 × 100

Simplify

= 15 %

~Learn with Lenvy~

Jeremiah bought a jacket for $110.25. If sales tax is 8.5%, how much will he pay in total?

Answers

Answer:

He would pay $119.62125 -> $119.62

Step-by-step explanation:

Answer:

Step-by-step explanation:  x = 119.64

The perimeter of a rectangle is less than 10 inches. The length is x and the width is x − 5. If the solution is x < 5, then the length is less than 5. Is this a viable solution?

Answers

No, it isn’t a whole. Since it’s less than 10 and the length is unknown besides knowing it’s less than 5in,

Answer: yes and no. The length must be less than 5.

But there is a practical limit to how the width is calculated.

So No.. This solution is not completely viable.

Step-by-step explanation: If the length is almost 4, for example, the width must be between a bit more than 0 and less than or equal to 1. Using x<5 -5 to compute the width is not viable.

how could -9 4/5 be expressed if its integer and fractional parts? ANSWER FAST

Answers

Answer:

Are you trying to know the value if its fractional part were to be turned in to an integer? I don´t know what you mean. All I know is -9 4/5 = -9.8

Step-by-step explanation:

Brainly please or a like

Does any one need help for circumference?

Answers

Answer:

-No

Step-by-step explanation:

Answer:

Nope π

Step-by-step explanation:

dancehall reply as far

A recipe for cookies calls for 13 of a cup of sugar per batch. Elena used 423cups of sugar to make multiple batches of cookies. How many batches did she make?

Write a division number sentence that represents the question above.

Write a multiplication number sentence that represents the question above.

Answers

Answer: 14 batches

Step-by-step explanation:

see the attached picture

Answer: 14 batches

Step-by-step explanation:

−9 1/9 round to the nearest 100th

Answers

Answer:

-91.00

Step-by-step explanation:

-91.00 jdkejelenelwneneje

can you help me on this please

Answers

Answer:

10 x 3 x 3 = 90cm (area)

Step-by-step explanation:

10x3x3=90cm i hope this helps!!

Kira has completed 26 hours of community service. her goal is to complete at least 90 hours. Write and solve an inequality to show how many more hours, H kira needs to complete to meet her goal

Answers

Answer:

h = 90 - 26

Step-by-step explanation:

90 is the total she needs to complete it and she has already done 26 so h = 90 - 26hope this helps please mark brainliest if you can

Answer:

h = 90 - 26

Step-by-step explanation:

90 is the total she needs to complete it and she has already done 26 so h = 90 - 26hope this helps please mark brainliest if you can

420 ft2 painted in 36 min; f ft2 painted in 30 min
(Write the proportion phrase and solve)

Answers

Answer:420/36 = f/30

f=(30)(420/36)

f=350 sq.ft

Step-by-step explanation: Hope this helps!

Choose the amount of money that is equal to 1 dollar 1 nickel.

Answers

Answer:

$1.05

Step-by-step explanation:

One dollar is equal to 1, and one nickel is 0.05 cents. Therefore, putting these together we get $1.05

$1.05. When you have a nickel you have 5 cents. When you have $1 you have 100 cents. 100+5=105 105=$1.05
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