Mathematics Middle School

What is the solution to this system of equations?

A: (-1, 2)
B: (4, -2)
C: (2, -1)
D: (-2, 4)

What Is The Solution To This System Of Equations? A: (-1, 2)B: (4, -2)C: (2, -1)D: (-2, 4)

Answers

Answer 1

Answer:

D. (-2, 4)

Step-by-step explanation:

Answer 2
The answer is D: (-2,4)

Related Questions

Two linear functions are represented in different formats.

Function 1:

x y
0 −2
2 0
3 1
5 3
Function 2:

Graph of a line passing through the point begin ordered pair negative 2 comma 0 end ordered pair and the point begin ordered pair 0 comma 4 end ordered pair.

Which statements are true?

Select each correct answer.


Function 1 has a greater rate of change than function 2.

Function 2 has a greater rate of change than function 1.

Function 1 has a greater y-intercept than function 2.

Function 2 has a greater y-intercept than function 1.

Answers

The statements that are true are;

Function 2 has a greater rate of change than function 1.

Function 2 has a greater y-intercept than function 1.

Step-by-step explanation:

Given that function 1 has the table;

x  y

0 -2

2  0

3   1

5   3

Finding the slope of the linear function gives the rate of change of the function. In this case,

m=Δy/Δx

m=3-1/5-3 = 2/2 =1

The equation of the linear function is given as;

m=Δy/Δx

y-3/x-5= 1

y-3=x-5

y=x-5+3

y=x-2

y-intercept is -2

In function 2, the line passes through points (-2,0) and (0,4)

Finding the slope of the line,

m₁=Δy/Δx

m₁=4-0/0--2

m₁= 4/2 =2

Rate of change is 2

Finding the equation of the line

y-4/x-0 = 2

y-4=2(x-0)

y-4 =2x

y=2x+4

The y-intercept is 4

The statements that are true are;

Function 2 has a greater rate of change than function 1.

Function 2 has a greater y-intercept than function 1.

please help ill give brainliest

Answers

Answer:

Step-by-step explanation:

what is the question

wheres the question ?

Create an equation modeling the scenario. Use the equation to solve for the missing number. In your final answer, include the equation and all necessary calculations. Twice the sum of a number and seven is three times the number.

Answers

Answer:

2(n+7)=3n

Step-by-step explanation:

"A number" is unknown so just create a variable in this case I made it "n."

We know that sum means to add so add the variable n and 7 then going back up the beginning we see it says twice so we take that sum and times is by two and I'm using parentheses to show this. The next part of the problem says "Is" and that's an indication of an equal sign. We'll then put the equal sign after the problem we just filled out and finish off the equation with 3 times the number meaning we'll put the 3 and next to each other as another way of multiplying.

2 (n+7)=3n Hopefully this helps !!!

Question 9
Read the question and type your response in the box provided. Your response will be saved automatically.
Maria has a new fish tank for her goldfish. The tank measures 912 inches long, 312 inches wide, and 612 inches tall.

Part A:
What formula should Maria use if she wants to know the volume of her new fish tank?

Part B:
Using the formula you wrote for Part A, what is the volume of Maria's new fish tank?





I'm giving out Brainliest!

Answers

Step-by-step explanation:

step 1. V = LWH. L = length. W = width. H = height.

step 2. V = (912)(312)(612) = 174,140,928 in^3.

The volume of Maria's new fish tank is 174,140,928 cubic inch.

It is required to find  the volume of Maria's new fish tank.

What is cuboid?

In geometry, a cuboid is a solid shape or a three-dimensional shape. A convex polyhedron that is bounded by six rectangular faces with eight vertices and twelve edges is called a cuboid.

Given :

Maria has a new fish tank for her goldfish.

The fish tank is in the shape of cuboid.

length=912 inches

width=312 inches

Height=612 inches

Part A

The formula of volume of her new fish tank

Volume=length ×width × height.

Part B

Volume=length ×width × height.

By the use of formula we have,

V = (912) ×(312) ×(612)

V= 174,140,928 cubic inch.

Therefore, the volume of Maria's new fish tank is 174,140,928 cubic inch.

Learn more about cuboid here:

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heavy rain in oxford caused the creek to rise. the creek rose 3 inches the first day, and each day twice as much as the previous day. how much did the creek rise on the fifth day?

Answers

48 inches???

Step-by-step explanation:

15 inches the 5th day or if you add them all up 45 inches total

Which of the following graphs represents a function?

Answers

Answer:

the last one

Step-by-step explanation:

A doctor replaces the fish tank in her office. Do the fish have more room to swim in the new tank? Find the volume of each tank to find out.

The volume of the new tank is ____________cubic feet

Answers

Answer:

12

Step-by-step explanation:

YEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEET

this is part 2 to my last question, i think it was incorrect im sorry

Answers

Denominator is correct
Hope that helped

Answer:

ELLO

uhhh yeah we helped each other one this lol

You and your friends go out to dinner. At the end of the meal, you and your friends want to leave a 20% tip of $66.36. What was the cost of the meal? Round to the nearest cent if necessary.

Answers

Answer:

76.36 Hope this helps

75.56 is the answer your welcome

if you help me I will give you 5 stars and brailiest

Answers

Answer:

108 108 108 108 and 35

Step-by-step explanation:

108 108 108 108 and brain and five stars OR ELSE jk. I think it's 35?

−76 = −0.8k

k =

What number represents k

Answers

Answer:

k= 95

Step-by-step explanation:

-76=-0.8k

-76/-0.8=k

95=k

k= 95

um i need help

Name 2 types of percents that you have to add the part.

Answers

Answer:

for example The ending number --> 50% of 2 is what?

Step-by-step explanation:

and The starting number -->  50% of what is 1

Answer:

40% of 1

Step-by-step explanation:

What is the rate of change from year 2 to year 7?

Answers

It would be 6 feet because 4 + 6 = 10

Are these expressions equivalent? (Simplify & substitute)
2(4n+2)-2 8n+2

Answers

Yes because when you distribute the 2 it would be 8n + 4 so the other one would be 8n + 2+ 2 so 8n + 4 again your welcome
No one is adding 2 and one is subtracting 2.

ONCE AGAIN URGENT
A boat is going 144 miles upstream (against the current) on a river. The speed of the boat in still water is 60 miles per hour. the speed of the river current is 80% less than the speed of the boat in still water. How long does the journey take?

Answers

Answer:

3 hours

Step-by-step explanation:

60 x 80% = 48

144 ÷ 48 = 3

help pleaseee U-U
thank you will mark brainly if right
the surface area of a triangle!

Answers

The answer would be B

Answer:

Yea the guys is right. B

Step-by-step explanation:

You call your teacher and find out that the second part of the note should have said “sell four hot dogs and two bags of chips for $10.” What does that do for your system of equations now? With this new information, how much should each item cost? Again, show all of your work.

Answers

Answer:

h = $4 a hotdog

c = $2 bag of chips

Step-by-step explanation:

3h + c = 14

2h + c = 10

3h + c = 14

-2h - c = -10

h = $4 a hotdog

2(4) + c = 10

8 + c = 10

c = $2 bag of chips

Answer:

h = $4 a hotdog

c = $2 bag of chips

Step-by-step explanation

3h + c = 14

2h + c = 10

3h + c = 14

-2h - c = -10

h = $4 a hotdog

2(4) + c = 10

8 + c = 10

c = $2 bag of chips

Match the equation to the graph where n is the Number of Burgers and C is the cost.
The 2 equations are C= 0.35n and C= 0.5n.

Answers

Answer:

How did life during the Industrial Revolution differ in the North and the South?  

In what ways did the Industrial Revolution make life better?

How did it make life more difficult? How did life during the Industrial Revolution differ in the North and the South?  

In what ways did the Industrial Revolution make life better?

How did it make life more difficult?

Step-by-step explanation:

i tnink igz the haowp?

What is the value of x?
-10(x + 9) = 10(x - 3)

Answers

Answer:

easy it will be x= negative 3

Answer:

The answer is x= -3

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Hoped this helped!

Brainly please?

i will give brainliest to whoever answers correctly

Answers

Answer:

6

Step-by-step explanation:

URGENT PLEASE ANSWER QUICKLY
A boat is going 144 miles upstream (against the current) on a river. The speed
of the boat in still water is 60 miles per hour. The speed of the river current is 80%
less than the speed of the boat in still water. How long does the journey take?

Answers

Answer:

2 hours 24 minutes

Step-by-step explanation:

Formula

distsance/speed = time

24 minutes and 2 hours at least.

What's the relationship between the circumcenter of a triangle and its three vertices?

Answers

The perpendicular bisector of a triangle is a line perpendicular to the side that passes through its midpoint. The circumcenter (O) is the central point that forms the origin of the circumcircle (circumscribed circle) in which all three vertices of the triangle lie on the circle.

hi i need help with this question. btw please explain

Answers

Answer:

A: -5, -3 B:2, 0 C:4, 1

Step-by-step explanation:

I think you have to see where the dot is placed on the number placement I'm not completely sure but that's my guess

A:-5 -3 B: 0 2 C: 4 1 that’s the answer because first you have to count how many on the x axis it takes to get to A B and C then you either count down or up on the y axis on how much it takes to get to A B and C

Solve the inequality 9/2 + v > 7/5

Answers

Answer:

the answer is -31/20

Step-by-step explanation:

Which expression is the best estimate of 5 7/8−3 2/15?

Answers

Answer:

C 6-3.

Step-by-step explanation:

5 78 is close to 6

3 2/15 is close to 3

Which of the ratios below is equivalent to 2:3? Select all that apply.
A) 9:6
B) 10:15
C) 8:12
D) 4:5
E) 20:30

Answers

Answer:

b and e

Step-by-step explanation:

Answer:

B C and E

Step-by-step explanation:

B is correct because when you multiply 2 and 3 by 5 you get 10:15

C is correct because when you multiply 2 and 3 by 4 you get 8:12

E is correct because when you multiply 2 and 3 by 10 you get 20:30

to find ratios you should be able to multiply the original two numbers by the same number to match

Find the whole.

10% of ( space) is 14.

Answers

Answer:

140

Step-by-step explanation:

Let x be the (space). Then, 10% * x = 14.

Solving for x, we get:

10% * x = 14

0.1x = 14

x = 140

Which expressions are equivalent to:

–2.5(1 – 2n) – 1.5n

Select all that apply.
 −2.5 − 3.5n
 −2.5 + 3.5n
 −2.5 − 6.5n
 −2.5 − n(5 − 1.5)
 −2.5 + n(5 − 1.5)

Answers

B and e are the correct answers

I plan on opening a savings account with $500 and leaving it in the account for 2 years. If the bank is going to pay me an interest rate of 3%, how much money will I have in the account at the end of 2 years?
A. $30
B. $300
C. $530
D. $800

Answers

The answer would be C

C. 530

500 x 2 x 3%

500 x 2 x .03

1000 x .03

30

30 + 500 = 530

Sonya randomly surveys 26 seventh graders to gather data about the amount of time spent each week using the Internet. Sonya records the data in the dot plot shown. Sonya infers​ that, on​ average, most seventh graders use the Internet a little more than 7 hours each week. Based on the dot plot, which number is the median of Sonya's data?

Answers

Answer:

I Think that it is 7.5

Step-by-step explanation:

Hope that his helps you  :-)

The median and mean of the data is 7.5

What is Arithmetic Mean?

The simplest and most popular way to measure a mean or average is the arithmetic mean. It simply entails adding up a collection of numbers, then dividing that total by the total number of numbers in the series.

Given:

According to box plot the mean is

= (3 x 2+ 4 x 1 + 5 x 2 + 7 x 8 + 8 x 3+ 9x 5 + 10 x 5 ) / 26

= (6 + 4 + 10 + 56 + 24 + 45 + 50 ) / 26

= 195 / 26

= 7.5

Hence, the mean is 7.5.

Also, the median = (7+8)/2 = 7.5

Learn more about Arithmetic Mean here:

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