Mathematics Middle School

Solving Equations and Systems of Equations
Without solving the systems, explain why the following systems must have the same solution.
System (i): 4x - 5y = 13
3x+6y=11
System (ii): 8x – 10y = 26
X – 11y = 2

Answers

Answer 1

Answer:

Because they are equal

Step-by-step explanation:

Answer 2
Guy above me is in fact completely correct. I suggest taking his answer.

Related Questions

Write and solve an equation that represents the following math sentence.

Twenty-four equals the sum of 10.5 and the quotient of a number and 4.5.

24 = 10.5 + 4.5m; m = 60.75
24 = 10.5 + 4.5m; m = 3
24 equals 10.5 plus m over 4.5; m = 3
24 equals 10.5 plus m over 4.5; m = 60.75

Answers

Answer:

24 = 10.5 + 4.5m; m = 60.75

Step-by-step explanation:

Answer:

24=10•5+4•5m؛m=60•75

24=10•5+4•5m؛m=

24 equal 10•5plus m over 4•5؛m=

24 equal 10•5 plus m over 4•5؛m=60•

Step-by-step explanation:

A manager at a shopping mall counts 244 males and n females as they enter the mall. The manager realizes that 25% of all males and 25% of all females are children. She writes the expression 0.25n+61 to represent the number of children who enter the mall. Is the manger correct? why or why not?

Answers

Answer:

no where did he get 61 from

Step-by-step explanation:

no where did he get 61 from !!

1.Justin was tracking the growth of his new plant. His plant grew 2 inches every week.His plant was 10 inches when he got it, and 12 inches in the second week. Haw many inches tall was his plant in the sixth week?

2.If Justin's partern of growth continues, how tall will his plant be in the ninth weeks.

Answers

Answer:

1.20 inches

2.26

Step-by-step explanation:

6-2=4

so 4 weeks

4x2=8

8 more so 8+12=20

20 +((9-6)x2)=20+(3x2)=26

Answer:

1. 20 in
2. 26 in

Step-by-step explanation:

6-1=5

5*2=10

10in+10in=20in

(9-1)*2=16

16+10=26

PLEASE ANSWER AS FAST AS YOU CAN BUT PLEASE GET THE RIGHT ANSWER!!!

PLEASE ANSWER AS FAST AS YOU CAN BUT PLEASE GET THE RIGHT ANSWER!!!

Answers

Answer: (-3,-8)

Step-by-step explanation: opposite of (3,-8)

It’s (-3,-8) because (-3,-8) is the opposite of (3,8)

This expression involves two numbers written in scientific notation.

Which is the simplified form of the expression?

This expression involves two numbers written in scientific notation.Which is the simplified form of the

Answers

Answer: the answer for it would be 20000 or should be

Step-by-step explanation:

4.2e7/2.1e3 should come out to 20000 at least my graphing calc says it should but it should come out to 20k

The answer is 20,000 explain the answer
4.2/2.1 x 10 little 7/10 little 3 = 4.2/2.1 x 10 little 4 = 2 x 10 little 4 = 2x 10000= 20,000
I hope it helps:)

please help I don't know how to do this
20 POINTS

please help I don't know how to do this20 POINTS

Answers

Answer:

The answer is 2 2/3    i hope it helps :)

Step-by-step explanation:

it is 2 2/3 :]] hope it helps

What value of c is a solution to this equation?
–5=–3(c–2)–8

Answers

Answer:c=1

Step-by-step explanation:Step 1: Simplify both sides of the equation.

−5=−3(c−2)−8

−5=(−3)(c)+(−3)(−2)+−8(Distribute)

−5=−3c+6+−8

−5=(−3c)+(6+−8)(Combine Like Terms)

−5=−3c+−2

−5=−3c−2

Step 2: Flip the equation.

−3c−2=−5

Step 3: Add 2 to both sides.

−3c−2+2=−5+2

−3c=−3

Step 4: Divide both sides by -3.

−3c

−3

=

−3

−3

c=1

C=1
I’m pretty sure it’s right

6.6× 101/03 ×107 can sum one plz help me with this question

Answers

Answer:

The answer would be 23,775.4

Step-by-step explanation:

if how u set the question up as in (101 is divided by 03?) then the answer would be 23775.4

What is the value of t?
-12 = 34 - 3
A-s
-1
1
3

What is the value of t?-12 = 34 - 3A-s-113

Answers

The answers is A. -3
The answer is A, I believe.

Please answer this question now

Please answer this question now

Answers

Answer:

C = (2,2)

Step-by-step explanation:

B = (10 ; 2)

M = (6 ; 2)

C = (x ; y )

|___________|___________|

B (10;2)            M (6;2)             C ( x; y)

So:

dBM = dMC

√[(2-2)^2 + (6-10)^2] = √[(y-2)^2 + (x - 6)^2]

(2-2)^2 - (6-10)^2 = (y-2)^2 + (x - 6)^2

0 + (-4)^2 = (y-2)^2 + (x - 6)^2

16 = (y-2)^2 + (x - 6)^2

16 - (x - 6)^2 = (y-2)^2

Also:

2*dBM = dBC

2*√[(2-2)^2 + (6-10)^2] = √[(y-2)^2 + (x - 10)^2]

4*[(0)^2 + (-4)^2] = (y-2)^2 + (x - 10)^2

4*(16) = (y-2)^2 + (x - 10)^2

64 = (y-2)^2 + (x - 10)^2

64 = 16 - (x - 6)^2 + (x - 10)^2

48 = (x - 10)^2 - (x - 6)^2

48 = x^2 - 20*x + 100 - x^2 + 12*x - 36

48 = - 20*x + 100 + 12*x - 36

8*x = 16

x = 2

Thus:

16 - (x - 6)^2 = (y-2)^2

16 - (2 - 6)^2 = (y-2)^2

16 - (-4)^2 = (y-2)^2

16 - 16 = (y-2)^2

0 =  (y-2)^2

0 = y - 2

2 = y

⇒ C = (2,2)

See the picture to solve the question 1Question=10 points

See the picture to solve the question 1Question=10 points

Answers

Answer:

1.5x+2.75y+33

Step-by-step explanation:

Call x: the hour of dogs keeping

      y: the hour of wolves keeping

The total charge for dogs keeping: 19+ 1.5x

The total charge for wolves keeping: 14+2.75y

Total cost (19+ 1.5x)+(14+2.75y)= 1.5x+2.75y+33

the answer is 1.5x+2.75y+33

The tape diagram below represents 100\%100%100, percent.

What percent is represented by the shaded area?

Answers

Answer:

Step-by-step explanation:

Well the answer is 40 cause you count by 20 so if you in 20 t o times then you would get 40 percent

Your answer would be 40.

Hall swam 34 laps in 1 2/3 hours. Find his swimming rate in laps per hour

Answers

1 2/3 = 5/3

5/3 ÷ 5/3 = 1

34 ÷ 5/3 = 34 x 3/5

102/5 = 20.4

20.4 laps per hour
First convert your fraction into a decimal
1 2/3 =1.66
They swam 34 laps so take 34 and divide it by 1.66
34/1.66= 20.48
So his swimming rate is 20.48 laps per hour

help me its due today :')

help me its due today :')

Answers

Answer:

9 feet easy to solve this is answer

The length of the other leg would also be 15ft. The triangle is an equilateral triangle meaning that it is equal on each side.

During the month of august, Mr. Amazon received junk mail on 25 of those days. What is the relative frequency of Mr. Amazon receiving junk mail?

Answers

Answer:

1.24

Step-by-step explanation:

To find the relative frequency, divide the frequency(f) by the total number of data values (n)

31 days in August / 25 = 1.24

What is the z axis? I know the x and y axis but not the z

Answers

Answer:

z axis is usually drawn vertically on a graph of at least three dimensions.It show the range of value of variable dependent

Find the surface area of a cylinder with radius r = 6 and height h = 14.8 to the nearest tenth of a square cm. Use π = 3.14.
A).783.7 cm2
B).226.1 cm2
c).391.9 cm2
D).1,673 cm2

Answers

Answer:

A. hope this help:)

Step-by-step explanation:

What is the equation if – 4y = 8x + 16 is solved for y
help assignment is due in 20 min

Answers

Answer:

Slope=4.000/2.000=2.000

Step-by-step explanation:

Slope 4.000/2.000 = 2.000
X - intercept = 4/2 = 2
Y - intercept = -4/1 = -4.00000

Help Please I don't know what to do.

Help Please I don't know what to do.

Answers

Answer:

y=4

y=7 (2,7)

y=10 (3,10)

y=-2 (-1,-2)

Answer:

Attached is the same chart. I inputted the values i the blank spaces

Help Please I don't know what to do.

Jackson uses the values from two patterns to form ordered pairs. He then graphs the ordered pairs to form a line. Both patterns start at 2. The pattern for the x-coordinates is to add 1 to the previous term. The pattern for the y-coordinates is to add 3 to the previous term.



Which ordered pair is on the line that Jackson graphs?


(3, 5)


(4, 5)


(4, 6)


(5, 3)

Answers

(3,5) and (4,5)I think

Answer:

3,5

Step-by-step explanation:

what season would the southern hemisphere experience if the northern hemisphere is experiencing spring?

Answers

The Southern Hemisphere would be experiencing autumn.
the southern hemisphere is experiencing autumn during this

I will give brainliest
Thank you (:

I will give brainliest Thank you (:

Answers

Answer:

non-unifrom

Step-by-step explanation:

Non-uniform because you won’t get the same number each time you spin

show that the (5,5),(5,0),and (0,0) are the vertices of an isosceles triangle.

Answers

An isosceles triangle has 2 sides that are equal.

I plotted these points. See attached screenshot.

The first side's distance is 5. You can just count those units along the x axis. (0,0) and (5,0) share the same y coordinate, so the difference in x coordinates is 5-0 = 5.

The next sides's distance is also 5. You can count that distance on the coordinate plane. (5,5) and (5,0) share the same x coordinate, so the difference in y coordinates is 5-0 = 5.

These two sides make a right triangle and are equal length. This is an isosceles right triangle.

show that the (5,5),(5,0),and (0,0) are the vertices of an isosceles triangle.

Neil has 21 pizzas. He serves 3 1/2 pizzas to his family for dinner. What fraction of the pizzas is left?

1/5
5/6
1/6
17 1/2

Answers

Answer:

17 1/2

Step-by-step explanation:

21 - 3 1/2 = 17 1/2

Answer:

It would be 17 1/2 because he said that he serves 3 and 1/2 that would mean you would subtract it so thats my answer

Step-by-step explanation:

Have a great day

HELP ME PLSSS IM STUCK

HELP ME PLSSS IM STUCK

Answers

Answer:

-67

Step-by-step explanation:

Answer and Explanation please (will mark as brainliest)

Answer and Explanation please (will mark as brainliest)

Answers

Answer:C.28%

Step-by-step explanation:

Write and Solve Equations-Word Problems help

Write and Solve Equations-Word Problems help
Write and Solve Equations-Word Problems help

Answers

Answer:

blue = 110

red = 83

Step-by-step explanation:

110 + 83 = 193

and the blue jar has 27 more coins than the red jar , so this is correct!

I need help with this one?

I need help with this one?

Answers

Answer:

C

Step-by-step explanation:

the AN line connects both AB and MN together therefor it is a transversal line.

Answer:

C) AN is a transversal to AB and MN

Please help!!!!! 40 points!
Josiah kept track of how many songs of each genre were played in an hour from his MP3 player. The counts are displayed in the table below. He has a total of 1,500 songs on his player. Josiah predicted the number of rock songs on his MP3 player to be 300 songs. Which statements about his solution are true? Select three choices.

Josiah’s Music
Sample 1
Sample 2
R & B
5
R & B
4
Pop
4
Pop
3
Classical
3
Classical
5
Jazz
2
Jazz
4
Rock
6
Rock
4

Josiah’s work:

StartFraction 10 over 20 EndFraction = StartFraction x over 1,500 EndFraction. StartFraction 10 times 30 over 20 times 30 EndFraction = StartFraction x over 1,500 EndFraction. 300 = x.
He should have found the average of the number of rock songs by averaging 4 and 6 to get 5.
He did not multiply the numerator and denominator by the correct number to equal 1,500.
His answer will be one-half of what he got because he did not divide 10 by 2 when setting up the proportion.
He can only solve the proportion by multiplying the numerator and denominator by a common multiple.
He should have multiplied the numerator and denominator by 75, not 30, because 20 times 75 = 1,500.

Answers

Answer:

Step-by-step explanation:d

If xx and y vary directly and y is 21 when x is 7, find y when x is 5

Answers

Answer:

y = 15

Step-by-step explanation:

We need to solve for k

y = x

21 = 7k  Divide both sides by 7 to solve for k

3 = k

y = xk

y = 5(3)

y = 15

Answer: y = 15

Step-by-step explanation:  

Other Questions
In exploring Cineplanets customer base and their movie-going experience IDEO chose to implement an inductive approach to their research. Describe the inductive method versus the alternative and explain why IDEO chose this path You are a financial advisor with a client who purchased 100 shares of stock in a fund with a net asset value of $21.30 and an offer price of $21.45. Your client wants to make $20 per share on the stock when it is sold. The client calls you to find out why you have not sold the shares today, because they saw the stock listed with a net asset value of $41.30 and an offer price of $41.45. Explain to your client why you have not sold the shares. in a species of wild lupine flower, the smooth seed allele (s) is completely dominant over the wrinkled seed allele (s). if the alleles for height are incompletely dominant, such that tt is tall, tt is intermediate, and tt is short, what will result from crossing a smooth-seeded short (sstt) plant with a wrinkled-seeded tall (sstt) plant? all the progeny will be smooth-seeded and tall. one-half of the progeny will be smooth-seeded and intermediate in height; one-half will be smooth-seeded and tall. all the progeny will be smooth-seeded and intermediate in height. all the progeny will be smooth-seeded and short. all the progeny will be smooth-seeded; one-half will be tall, and one-half will be short. which sentence is correctly punctuated? group of answer choices the wind and waves destroyed the pier: but not the lighthouse. the wind and waves destroyed the pier but not the lighthouse. Evaluate the following integrals ^4_2 In(13x)/x dtEvaluate ^4_2 1/(2x-3)^3/2 dx Which ordered pair is a solution to the equation? y=x322 During a school food drive, thesophomores collected 62 more cansthan the freshmen collected.Together, both classes collected 428cans. Write an equation that can beused to determine the number ofcans, c, the sophomores collected. help pleaseThe reaction forms 5.3 moles of H3PO4. The molar mass of H3PO4 = 98 g/mol. We want to calculate the mass of H3PO4 that forms during the reaction. What part of the conversion factor goes in the green box?(please see picture below) Which sentence about evaluating expressions is FALSE? Once an expression is in simplest form, replace the variables with the given numerical values. The value of the expression is the same each time you evaluate it. Follow the order of operations when evaluating an expression. Fully simplify the expression first. Which number has a 2 with a value ten times greater than the 2 in 5,621?0 215O 2,84552,4060 201,384Question 9 ap3.1 suppose the probability that a softball player gets a hit in any single at-bat is 0.300. assuming that her chance of getting a hit on a particular time at bat is independent of her other times at bat, what is the probability that she will not get a hit until her fourth time at bat in a game? Deion had 4.22 grams of pepper. Then he used 1.92 grams of the pepper to make somescrambled eggs. How much pepper does Deion have left? A sequence of numbers Do, 11, 12,... is such that 10 = 4 and, for each n >1, In = Kon-1+3, where K is some fixed number such that 0 < K what is a great circle? question 8 options: a) a circle on a sphere made by performing a plane cut anywhere on the sphere b) a circle on a sphere that has the same radius and center as the sphere itself c) a circle on a sphere that doesn't pass through the sphere's center d) another name for a sphere NEW TESTAment Quizlet _________________ is orally transmitted commentaries about how the Torah is to be applied in specific situations. On March 31, 1998. the Cash Book of Henry showed a Bank balance of $ 4,850. While verifying with the Pass Book, thefollowing facts were noted: (i) Cheques sent in for collection before March 31, 1998, andnot credited by the bank amounted to $ 845. (i) Cheques issued before March 31, 1998, but not presentedfor payment amounted to $ 885.(iii) The banker has charged a sum of $ 100 towards incidentalcharges and credited interest $ 250.(iv) The banker has given a wrong credit for $ 250. (V) Mr. Neon has paid into bank directly a sum of $ 300 on March 28, 1998, which has not been entered in the cashbook(vi) A cheque for $ 200 sent for collection and returned unpaidhas not been entered in the cash book.Prepare a Bank Reconciliation Statement. Which statement is true about the powers granted to the states in the Constitution? A. The powers given to states are listed in the Constitution's implied powers clause,B. The Constitution is more specific about the powers that states do not have than about those that they do.C. The Ninth Amendment specifies which powers belong to the states,D. Article 1, Section 8, says that states have all powers that are necessary to exercise their enumerated powers, Miguel y yo somos muy inteligentes y determine the ka value for an acid where a 0.22 m solution has a measured ph of 2.98. enter your answer in scientific notation with two significant figures. Professional speechwriters, such as former presidential speechwriter Peggy Noonan, typically compose a speech by __________.a. producing a draft that is pretty much ready as writtenb. producing an introduction that makes possible the need for minimal draftsc. working through multiple drafts, likely a dozen or mored. working through a draft, conducting some research, and then finalizing