Mathematics Middle School

HELP ASAP PLS

Which statements are true about the ordered pair (−4, 0) and the system of equations?

{2x+y=−8
{x−y=−4


Select ALL correct answers.


The ordered pair (−4, 0) is a solution to the first equation because it makes the first equation true.

The ordered pair (−4, 0) is a solution to the second equation because it makes the second equation true.

The ordered pair (−4, 0) is a solution to the system because it makes both equations true.

The ordered pair (−4, 0) is not a solution to the system because it makes at least one of the equations false.

Answers

Answer 1
a, b, c .
I think lol

Related Questions

WILL GIVE BRAINLIEST AND 70 POINT! PLEASE HELP ME!

Answers

Answer:

X and Y

and for ast two answers pls give me the options

Yea I need the options but the rest is x and y

True or False

Scale Factors can be written as fractions in simplest form.

Answers

Answer:

TRUE

Step-by-step explanation:

scale factor is the ratio of the model measurement to the actual measurement in simplest form

PLS MARK AS BRAINLIEST...

True please give brainliest

What does "mean" mean in math?

Answers

Median:The number in the MIDDLE when they are IN ORDER! - Mean- The AVERAGE OF ALL NUMBERS: You add up all the numbers then you divide it by the TOTAL NUMBER of NUMBERS!

hope it helps

Answer:

The mean is the total of the numbers divided by how many numbers there are. To find the mean, add all the numbers together then divide by the number of numbers.

Step-by-step explanation:

Please mark me brainliest and thank me

A scale model of a boat is 6 inches long. The actual boat is 42 feet long. Which statement(s) are true??

Answers

Answer:

B. 1 in = 7 ft

Step-by-step explanation:

Since on the scale the boat was 6 inches and the actual boat was 42 feet, we need to divide to see how many feet correlate to the number on inches on the scale. So we do 42 / 6, which equals 7. This means that for every inch on the scale, it will be 7 feet in real life.

the answer is B. hope this helps

Please help with this

Answers

Answer:r=40/9

Step-by-step explanations

40/9 is the answer for sure

The temperature in degrees Fahrenheit, F, is related to the temperature in degrees Celsius, C, by the equation F=9/5C+32.

a. In the Sahara desert, temperatures often reach 50 degrees Celsius. How many degrees Fahrenheit is this?

degrees Fahrenheit

b. In parts of Alaska, the temperatures can reach -60 degrees Fahrenheit. How many degrees Celsius is this?

degrees Celsius

c. There is one temperature where the degrees Fahrenheit and degrees Celsius are the same, so that C=F. Use the expression from the equation, where F is expressed in terms of C, to solve for this temperature.

C =

Answers

Answer:

33.8

Step-by-step explanation:

9/5C=1.8C+32=33.8

I need help on this too I don’t know which one it is

k/7 ​+ 3 − 2k = −3
Explain how to solve the problem. SHOW YOUR WORK!

Answers

Answer: 42/13

Step-by-step explanation:  Multiply everything by 7 to eliminate the fraction:

k+ 21 - 14k = -21

Isolate the variable:

k - 14k = -21-21

13k= -42

divide the sides by -13.

42/13

42/13




Hope this helped

solve for x: 4.72 = 3.25 + x

Answers

X=1.47
Step by step:-

HELP PLEASE THIS IS DUE AT 9:50 MY TEACHER IS STRIIIICT ABOUT HOMEWORK

Answers

Answer:

[tex] \sqrt[3]{?} 3375 [/tex]

Your teacher should be arrested

How do you convert 14x + 19y = 20 into slope intercept form?

Answers

Subtract 14x from both sides. Then divide both sides by 19

[tex]14x + 19y = 20\\\\19y = 20-14x\\\\19y = -14x+20\\\\y = \frac{-14x+20}{19}\\\\y = \frac{-14x}{19}+\frac{20}{19}\\\\y = -\frac{14}{19}x+\frac{20}{19}\\\\[/tex]

The equation is now in slope intercept form y = mx+b

m = -14/19 is the slope

b = 20/19 is the y intercept

The answer is in the photo lmk if you need any clarification

Here is the graph for one equation in a system of equations:


Match the correct equation to the scenario.

Write a second equation for the system so it has infinitely many solutions.

a) y=-3/4x+4

b) y=-3/4x+2

c) y=-3/4x+1

Write a second equation whose graph goes through (0, 1) so the system has no solutions.

a) y=-3/4x+4

b) y=-3/4x+2

c) y=-3/4x+1

Write a second equation whose graph goes through (0, 2) so the system has one solution at (4, 1).

a) y=-3/4x+4

b) y=-3/4x+2

c) y=-3/4x+1

Answers

Answer:

Step-by-step explanation:

1. y = -3/4 +4 cause that is the same line as the equation and since they are the same line it would mean there would be infinitely many solutions.

2. y=-3/4x+2 if you graph this line next to the orginal line it runs through (0,1) and you can see that its paralellel and will never meet the other line so there will be no solutions

3. for this question im confused because none of the answers fits the line that the question is asking for the closest would be y= -3/4x+2 since it runs through (0,2) but other than that none of the answers fit the line its describing.

an equation that would work though would be y=-1/4x+2

You will need 120 feet of fencing to put all the way around a rectangular garden. The length of the garden is 40 feet. What is the width?


A. 20 feet


B. 40 feet


C. 4,800 feet


D. 80 feet

Answers

Answer:

A. 20 ft

Step-by-step explanation:

(120/2)-40=20

Answer:

a) 20 feet

Step-by-step explanation:

We know it's a rectangle so lengths are the same and widths are the same

If length is 40

That would mean 120-2(40) = 80

We know 2 widths of a rectange so 40/2 is 20

Therefore 20 feet.

Please answer ALL FOUR questions, and if you don't properly answer the questions or just steal the points I will report and get your answer removed.

Answers

Answer:

i could just use this one to get the points from the last one i answered in the comments if you dont mind :)

Step-by-step explanation:

Answer:

what are the questions?

Step-by-step explanation:

Mindy's dog, Rex, weighed 80 pounds a year ago. Now he weighs 92 pounds. What is the percent increase in his weight? A. 13% B. 12% C. 15% D. 16%

Answers

Explanation - Given that Rex's weight changed from 80 pounds to 92 pounds. Hence, percentage increase in Rex's weight in a year is 15 %.

please solve this question asap :)

Answers

Answer:

36.695 approx 36.7

Step-by-step explanation:

find the area of the top triangle and then add it to the area of the bottom rectangle

Area of the triangle: (bh)/2

3.5*4.1=14.35

14.35/2=7.175

Area of the rectangle: bh

4.1*7.2=29.52

Total (add the two values)

29.52+7.175

=36.695

The answer is b I took this quiz before

sorry i did not put the pick hear you go sorry my bad
7th grade math ◑〰️◐





help me ples its my sis agen she sint me this ples help her/me
by her /me i mean me helping her

Answers

i’m thinking 170? sorry if it’s wrong :(

Which values for x make this inequality false?

Answers

Answer:

0, -11, -5, and 20

Step-by-step explanation:

The inequality can be read as x is less than -12.8 (or -12.8 is greater than x)

This means that we need to pick x values that are greater than -12.8 for the inequality to be false.

The values greater than -12.8 are:

0, -11, -5, and 20

-5 makes the x value false

How do you convert 20x + 9y = 9 into slope intercept form?

Answers

Answer:

[tex] y = - \frac{20}{9} x + 1 [/tex]

Step-by-step explanation:

[tex]20x + 9y = 9 \\ \\ 9y = - 20x + 9 \\ \\ y = - \frac{20}{9} x + \frac{9}{9} \\ \\\purple {y = - \frac{20}{9} x + 1} \\ this \: is \: the \: required \: \\slope \: - intercept \: form \\ \ \\ where \: \\ slope \: = - \frac{20}{9} \\ \\ y - intercept = 1[/tex]

20x+9y=9

First, the formula for slope intercept is y=mx+b
So, in order to get it in the slope form we have to subtract 20x from both sides.
We end up with, 9y=-20x+9
We have to get rid of the 9 so we divide.
9y=-20x+9
/9 /9. /9
I don’t want to write the answer because I want you too find it out. :) hope this helps!

Please help with this

Answers

I thinks is A or B if not I’m sorry
i think it should be b

5. During an local election the ratio of teens to adults who voted was 10:8. If 1,764 people voted how many were teens?

Answers

Answer:

288

Step-by-step explanation:

Answer: 288

Step-by-step explanation:

I need help right now

You are ordering pizzas to share with friends. If you consider 3 slices (or 3/8 of a pizza) to be a single serving, how many servings will you get if you order 3 pizzas?
3 slices = 3/8 of a pizza 1 pizza = 8 slices 3 pizzas = 24 slices

Answers

Answer:

I belive you would get 8 servings in 3 pizzas. 24 divided by 3 is eight

Step-by-step explanation:

You are making a new recipe for dinner. The recipe has the following proportional relationship. 8 cups of corn for 4 cups of sauce 32 cups of 16 for cups of sauce Find the constant of proportionality. Find how many cups of corn you need for 7 cups of sauce.
(please help me with this I don't get it at all)

Answers

Answer: I’m not for sure but I think its 8 1/2

Step-by-step explanation:

For 7 sauces you would need 14 cups of corn I think

Urgent help pleaseeeeeee

Answers

Answer:

2x - 10 = 10 - 3x

Simplifying

2x + -10 = 10 + -3x

Reorder the terms:

-10 + 2x = 10 + -3x

Solving

-10 + 2x = 10 + -3x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '3x' to each side of the equation.

-10 + 2x + 3x = 10 + -3x + 3x

Combine like terms: 2x + 3x = 5x

-10 + 5x = 10 + -3x + 3x

Combine like terms: -3x + 3x = 0

-10 + 5x = 10 + 0

-10 + 5x = 10

Add '10' to each side of the equation.

-10 + 10 + 5x = 10 + 10

Combine like terms: -10 + 10 = 0

0 + 5x = 10 + 10

5x = 10 + 10

Combine like terms: 10 + 10 = 20

5x = 20

Divide each side by '5'.

x = 4

Simplifying

x = 4

Answer

pick C

Step-by-step explanation:

the answer is 2x+12


On a coordinate grid, point A is located in the first quadrant. Point B is located at (2, - 1/2
Point C is a reflection of point B across the y-axis. Which graph shows these three points?

Answers

Answer:

the answer I think is B so

The graph attached correctly labels the points A, B and C.

What is the meaning of reflection of figure?

A reflection is a mirror image of the shape. An image will reflect through a line, known as the line of reflection.

Given is that on a coordinate grid, point {A} is located in the first quadrant. Point B is located at (2, -1/2). Point C is a reflection of point B across the y-axis.

Since the complete graphs are not given. Refer to the graph attached for correct plotted points.

Therefore, the graph attached correctly labels the points A, B and C.

To solve more questions on Reflection of points, visit the link below-

https://brainly.com/question/1548989

#SPJ2

BRAINLIEST!!! Lorenzo deposited $60 in a savings account earning 10% interest, compounded annually.


To the nearest cent, how much will he have in 2 years?

Answers

Answer: it way be 72.60$ but i’m not sure

PLS HELP ASAP


Which statement is correct for Triangle ABC. and Triangle A prime B prime C prime.?

Triangle ABC is similar to triangle A prime B prime C prime. because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 3. and then rotating it about the origin by 180 degrees
Triangle ABC is similar to triangle A prime B prime C prime., because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 4. and then rotating it about the origin by 90 degrees
Triangle ABC is similar to triangle A prime B prime C prime., because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 4. and then rotating it about the origin by 180 degrees
Triangle ABC is similar to triangle A prime B prime C prime., because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 6. and then rotating it about the origin by 90 degrees

Answers

Answer:

A

Step-by-step explanation:

A is the correct answer

Brainliest to the first right

Answers

10.90871211463571 i think?

HELP NOW PLEASE !!!!!

Answers

Y intersect is -1 as well as start from the -1 and go up 2 and 3 to the right and repeat this process until ur at the end of the graph. Then you draw a line through the intersection points.

what is 9/15 estiamted to 0,1/2,1

Answers

Answer:

.........

Step-by-step explanation:

Ummm I think you put this in the wrong grade level

Does anyone also understand this?

Answers

Answer:

See explanation

Step-by-step explanation:

So, the angle for QRS is the interior angle of R. The exterior angle outside of angle R is for the equation you are going to use. Because angle R is on a straight line, the interior angle of R plus the exterior angle of R will equal 180 degrees. From there you should be able to calculate the rest of the angles, I believe you should be able to calculate y first.

All of the angles in a triangle add up to 180. From there you make an equation which would give you the value of y.

We know that the bottom line is straight, so it equals 180*. QRS is supplementary to the R* angle, which is 144*. All supplementary angles add up to 180, so 180-144 would give us 36* for the Value of QRS.

Now we know QRS=36* and the sum of all the angles is 180, we can write the equation
6y + 36 =180
y= 24

Now you plug the y in ... giving you the value of angle S to be 24* and angle Q to be 120.

QRS = 36*
Q= 120
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