Mathematics Middle School

2. Without solving the systems, explain why the following systems must have the same solution.

System (a): 4x-5y= 13 system (B): 8x- 10y= 26
3x+6y= 11 x-11y= 2

Answers

Answer 1
because when you simplify system b, it becomes the same as system A
Answer 2
System multiplied by 2= system b

Related Questions

Write an algebraic expression for the following: twice a number *
4 - 5n
2x
5n - 4
2 + 5 x h

Answers

2x ! the number would be x and 2x is 2 times x!

Answer:

2x

Step-by-step explanation:

1. when a number and a variable are right beside eachother it means that you would multiply them. the equation 2x is the same as 2•x but is simplified to 2x

help me, please
i really need it

Answers

Answer:

Rule : When we rotate a figure of 90 degrees clockwise, each point of the given figure has to be changed from (x, y) to (y, -x) and graph the rotated figure. Let us look at some examples to understand how 90 degree clockwise rotation can be done on a figure.

Did you get it right?

pls answer if you know it

Answers

Answer:

v<-20

Step-by-step explanation:

We can treat this as an equation and subtract 25 from both sides:

v<-20

Please help!!! Need it now or my mom will kill me. I have a ton of missing assingments.

Answers

The correct answer is m=88

Answer: M=88

Step-by-step explanation:

Assume M/8 is X

x+8=19

X=11+8

So M/8= 11

8*11

= 88

M=88

Btw brain is a tool and if You have missing assignments, You should make up for them and actually learn. If not, It’s useless

Not to be Nosy or anything

help i guess? Ik its easy i just got lazy

Answers

I hope this helps have a good day
11 16 and 17 are the answers for them

HELP ME ASAP!!!!!!!!

Answers

Answer:

9. 2 1/12     10. 3/14

11. D             12. 7/8

13. 5/8 hours  13. 1/12

15. No he is not correct because 1/2 equals 2/4, 1/4 plus 2/4 equals 3/4

16. No he is not correct because 5/6 is 10/12 and its way greater than 6/12

i know you already have the answer but i hope you’re having a great day!! :)

Help! Algebra! Will give Brainiest!

Answers

Answer: d

Step-by-step explanation:

Answer:

It is D

Step-by-step explanation:

Good luck and have  good day

Help needed; How do I answer

Answers

Answer:

5+5=10

Step-by-step explanation:

Boom

Answer: 2 donuts per hour

Step-by-step explanation: On the line, x is an hour and y is how many dough. Every time it lines up equally it has 2 dough per hour

please help me i have 1 more after this

Answers

Answer:

11

Step-by-step explanation:

24 -:- 3+3

8+3

11

Answer:

9

Step-by-step explanation:

HELP ME ILL GIVE BRAINLIEST AND A THANK YOU There are 650 people expected to donate to the fundraiser. Each person who donates to the fundraiser will receive 10 tickets to put towards prizes. There are 100 tickets on each strip of tickets.

Answers

65 strips will be needed
65 strips are required

which expression is equivalent to 6(x+2y)+3+4y+5

Answers

Answer:

6x+16y+8

Step-by-step explanation:

In order to solve this problem,

6(x+2y)+3+4y+5

We would first need to expand the brackets

6x + 12y + 3 + 4y + 5

Collect like terms together.

6x+12y+4y+3+5

Add the like terms

6x+16y+8

Therefore, the expression which is equivalent to 6(x+2y)+3+4y+5 is 6x+16y+8

Answer:

6x+16y+8

Step-by-step explanation:

m a t h

Use the table below and write an equation to show the relationship between x and y


X (INPUT) 2 5 8 10 11
Y (OUTPUT) 6 15 24 30 33
Group of answer choices

A.y=x+3

B.y=x -10

C.y = 3x

D.y = x/3

Answers

Answer:

d

Step-by-step explanation:

your answer should be d !

16 points dont steal points
Also the answers inside the choose is: A. 2 times B. 4 times C. 21 more than D. 105 more than

Answers

Answer:

B

Step-by-step explanation:

7x4 = 28

just do 4 times everything to double check

P.S. Can I get brainliest

EDIT: Nvm I don’t need brainliest I was happy too help :)

The answer is B because 7x4=28, 14x4=56 and so on.

PLZ HELPPPPPPP THE QUESTION IS IN THE PIC

Answers

Answer:

A

Step-by-step explanation:

PLZ HELP ME THE QUESTION IS IN THE PIC

Answers

Answer:

Triangular Pyramid

Step-by-step explanation:

Answer:

the first question on the page

20% of your family likes marshmallows melted on top of the sweet potato casserole. If you have 18 people in your family, which proportion could be used to find the number of people who like marshmallows melted on top of the sweet potato casserole?

Answers

Answer:

18 out of 20% gives you 3.6

Step-by-step explanation:

I don’t know if this right or not but 18 out of 20% gives u 3.6

Meg laid 15 tiles in 50 minutes.
Jessica worked for 85 minutes at a faster rate per tile than Meg.
Choose all the rates that could be Jessica’s rate.


20 tiles in 85 minutes


24 tiles in 85 minutes


28 tiles in 85 minutes


1 tile in 3 minutes


1 tile in 4 minutes

Answers

1 tile in 4 minutes

helppppppppppppppppppppp

Answers

Answer: d the last one

Step-by-step explanation:

Answer:

1 , 3,4

Step-by-step explanation:

1

We can multiply both by 8

So, 8x and -24

So its correct

2We multiply 8 by both

So, we have 8x-192

So, no

FIrst, we can do 9 and apply it to both x and -3

So, 9x-27-x+3

So, 8x-24

SO, yes

4

5+3*x = 8x

So, 8x-24

So yes

A basketball has a mass of 1 kg and is traveling 12 m/s.

What would happen to the velocity if the momentum of the basketball were cut in half?

Answers

Answer:

[tex]6\:\mathrm{m/s}[/tex] (The velocity would also be halved)

Step-by-step explanation:

The momentum of an object is given as [tex]p=mv[/tex] where [tex]m[/tex] is the mass of the object and [tex]v[/tex] is the velocity of the object.

Because mass is constant, if the momentum ([tex]p[/tex]) was cut in half, the velocity of the basketball would also be halved:

Let [tex]p_1[/tex] be the initial momentum and [tex]p_2[/tex] be the final momentum:

[tex]\frac{1}{2}p_1=p_2,\\\frac{1}{2}mv_1=mv_2, \\\fbox{$\frac{1}{2}v_1=v_2$}[/tex]

Therefore, the basketball's new velocity is [tex]\frac{1}{2}\cdot 12=\fbox{$6\:\mathrm{m/s}$}[/tex].

a basketball has a mass of 1kg and is traveling 12 m/s
6 m/s

On a large baking tray, 40 cookies can be baked together. To bake 40 cookies it takes 14 minutes, for baking 80 cookies it takes 28 minutes, for baking 100 cookies it takes 42 minutes. How much time will it take to bake 140 cookies?

A-49 B-56 C-57 D48

Answers

the answer is B (56) because it states that it takes 14 minutes to bake 40 cookies, and you already have 100 cookies so you would just add the time it took to bake 40 cookies which would be 42+14=56

Charlene’s dress cost $270. Three days later, it went on sale for 35% off. How much could she have saved if she waited three days?

Answers

Answer:

94.5 dollars

Step-by-step explanation:

Answer:

94.50$

Step-by-step explanation:

270 / 20 = 13.50

13.50 x 7 = 94.50

Hope this helps!

Find the perimeter FOR BRAINLIEST

Answers

Answer:

56

Step-by-step explanation:

The perimeter is 56 because you added all of the numbers on there which got you to it, it’s really easy

Consider the following quadratic equation. f(x) = 9x^2
Part A: Write a function, g(x), the shifts f(x) down by 3 units.
Part B: Write a function, h(x), that vertically stretches f(x) by 6 units.
Part C: Write a function, m(x), that reflects f(x) about the x-axis.

Answers

Answer:

[tex]g(x) = 9x^{2} -3[/tex][tex]h(x) = 54x^{2}[/tex][tex]m(x) = -9x^{2}[/tex]

Explanation:

[tex]f(x) = a(x-h)^{2} + k[/tex]

a:

Determines direction.Negative x reflects over x-axis.a < 1 --> vertically shrunk.a > 1 --> vertically streched.

h:

Determines left and right.Sign of h flips...(x + h) goes left.(x - h) goes right.

k:

Determines up and down.

What is the range of the following numbers?
12,20,18,25,6

Answers

Answer:

The difference between the highest and the lowest which is

25_6=19

Step-by-step explanation:

Answer:

The range is 19.

Step-by-step explanation:

You subtract the highest number and the lowest. And those two numbers are 25 and 6!

25-6=19

Can you help me with my math

Answers

1.domain={1,3,6} range={2,5,8} yes it is a function
2.domain={3,2} range={7,13} no it’s is not a function
3.domain={0,2,4} range={-1,1,3,5} no it is not a function
4. 0 ride=$0 1ride=$3 2ride=$6 3ride=$9 4ride=$12 5ride=$15
Yes it is a function
(If you want me to explain I can)

Hope this helps

Have a great day/night

Hey! can you guys please solve all correctly? i need them asap btw, thanks! (I will give brainliest and 15 points)

Answers

The answer should be D because whenever x is bigger than 5 then the left side would be bigger than 2.

30 POINTS <3

If you roll a die what is the probability of getting a 2 or 6?

1/3
1/4
1/6
2/3

Answers

Answer:1/6

Step-by-step explanation:

What do the area of this figure?

Answers

Answer:

155

Step-by-step explanation:

just did it

46 :) added them together

what is 5/8 as a decimal please give explanation
WILL GIVE CROWN

Answers

Answer:

One eighth is equal to 0.125.  Four eighths is equal to one half, or 0.5.  So five eighths is 0.5 + 0.125, which equals 0.625.

Answer:

0.625

Step-by-step explanation:

1/8 as a decimal is 0.125

to find 5/8 you multiply .125 times 5 which gives you 0.625. Hope this helps!

The rabbits ate three fifths of the celery crop in each of 8 gardens. What fraction of celery crop did they eat in all?

twenty four fortieths
eleven fifths
eleven fourteenths
twenty four fifths

Answers

The answer is a
Step by step
Multiplication
8×5 = 40
8×3 = 21
21/40
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