Mathematics Middle School



Which ordered pairs in the form (x, y) are solutions to the equation

7x−5y=28 ?

Select each correct answer.

(7, 9)
(−1, −7)
(4, 10)
(−6, −14)

Answers

Answer 1
Okay. So to solve this problem, we have to try out each of the values to see what we get. x is the number up front and y is the number that is second in line. Let's try out the first. 7 * 7 is 49 and 5 * 9 is 45. 49 - 45 is 4. 4 < 28. Therefore, A is out. 7 * -1 is -7 and 5 * -7 is -35. -7 - (-35) is 28. 28 = 28. Score! But wait. 7 * 4 is 28 and 5 * 10 us 50. 28 - 50 is -22. C is out. 7 * -6 is -42 and 5 * -14 is -70. -42 - (-70) is also 28. 28 = 28. You have two answers. They are B and D.
Answer 2
the answers are (-1,-7) and (-6,-14) HOPE IT HELPS.

Related Questions

A weed called the boomstar vine is known for growing at a very fast rate. It can grow up to 0.5 feet per day. How fast in inches per day can the boomstar vine grow up to? How fast in inches per hour can the boomstar grow up to?

Answers

It can grow 6in per day, and 0.25 inches per hour.
Final answer:

The Boomstar vine can grow up to 6 inches per day and 0.25 inches per hour, after converting from feet to inches and dividing by the number of hours in a day, respectively.

Explanation:

The Boomstar vine can grow up to 0.5 feet per day. To convert feet to inches, we multiply by the conversion factor of 12 inches per foot. Therefore, multiplying 0.5 feet by 12 gives us:

0.5 feet/day × 12 inches/foot = 6 inches per day.

Next, to find out how fast it grows in inches per hour, we divide the daily growth in inches by the number of hours in a day:

6 inches/day ÷ 24 hours/day = 0.25 inches per hour.

can someone please help me


What is the name of the relationship between ​ ∠1 ​ and ∠8 ?

alternate interior angles
adjacent angles
alternate exterior angles
corresponding angles

Two parallel lines cut by a transversal. Angles are labeled one through four, starting above the top parallel line labeled 1 and 2 going left to right. Below the top parallel line labeling 3 and 4 going left to right. Angle 1 is acute. Angles are also labeled 5 through 8, starting above the bottom parallel line being labeled 5 and 6 going left to right. Below the bottom parallel line the angles are labeled 7 and 8 going from left to right.

Answers

FRom your description < 1 and < 8 are alternate exterior angles

A box of cereal measures 3 by 8 by 10 inches. The manufacturer plans to market a smaller box that measures 2 by 7 by 8 inches. By how much will the volume be reduced?

Answers

128 cubic inches..hoped this helped 

volume of original box: 3 *8 *10 = 240 cubic inches

volume of new box: 2 *7 *8 = 112 cubic inches

240 - 112 = 128

 volume is reduced by 128 cubic inches

To different companies offer online gaming subscriptions. Company A charges $75 upfront and then $20 per month. Company B does not charge an upfront fee, but charges $35 per month. After how many months will the two companies charge the same amount?

Answers

Hello! To solve this equation, let's set it up like this: 75 + 20m = 35m. This is because Company B does not charge an upfront fee, so all you have to do is 35m and Company A charges $75 upfront and then $20 per month, so you do 75 + 20m. First, you subtract 20m from both sides. When you do, you get 75 = 15m. Now, you divide each side by 15 to isolate the m. When you do that, you get 5. Let's plug in the numbers to see what we get. 20 * 5 is 100 + 75 = 175. 35 * 5 =175. 175 = 175. There. The two companies will charge the same amount in 5 months. m = 5.

The number of months when the two companies charge the same amount is 5 months.

Let the number of months when the two companies charge the same amount be represented by x.

Therefore, based on the information given, the equation to solve the question will be:

75 + (20 × x) = 35 × x

75 + 20x= 35x

Collect like terms

35x - 20x = 75

15x = 75

Divide both side by 15

15x/15 = 75/15

x = 5

Therefore, the number of months when the two companies charge the same amount is 5 months.

Read related link on:

https://brainly.com/question/6139286

Graph the line y=−1.5x. Using the graph, find:
The value of y corresponding to the value of x equal to 1; 0; 2; 3 problem.

If x = 1, y = .
If x = 0, y = 0.
If x = 2, y = .
If x = 3, y = .

Answers

x=0-> y=0
x=1-> y=-1.5
x=2-> y=-3
x=3-> y=-4.5

Can anybody help me pleasee I don't understandd

Answers

Hello there.

6(8 - 2y) = 4y

To solve for this, we need to apply the Distributive Property to the left side of the equation. This property allows us to multiply the number outside of the parenthesis by all numbers inside of the parenthesis.

6(8 - 2y)
6(8) + 6(-2y)
48 - 12y

Now, let’s take a look at our equation.

-12y + 48 = 4y

To make things more simple, we’ll add 12y to both sides of the equation. This will cancel out -12y on the left side of the equation and will turn 4y on the right side of the equation into 16y.

Our new equation is:

16y = 48

Now all we need to do is divide both sides by 16 to solve for y.

16y / 16 = y
48 / 16 = 3

Our final answer and solution is:

Y = 3

I hope this helps!

Solve each compound inequality and graph the solution.

1. 2x + 5 > −3 and 4x + 7 < 15

2. 2x − 5 > 3 or −4x + 7 < −25

Answers

1) x > -4 and x < 2

2) x > 4 and x <8

The required solution for inequality 1 is x >-4 and x < 2, and for inequality 2 is     x > 4  or  x > 8.

What is inequality?

Inequality can be defined as the relation of the equation containing the symbol of ( ≤, ≥, <, >) instead of the equal sign in an equation.

Here,
1. 2x + 5 > −3 and 4x + 7 < 15
  2x > -8  and 4x < 8
  x > -4   and x < 2

2. 2x − 5 > 3 or −4x + 7 < −25
   2x > 8  or -4x < -32
     x > 4  or  x > 8

Now, plotting graph for both inequalities,
the double-shaded portion on the graph is the required solution for inequalities in section 1 of the question, and solution for the section 2 of the question is each shaded area of the graph.

Thus, the required solution for inequality 1 is x >-4 and x < 2, and for inequality 2 is     x > 4  or  x > 8.

Learn more about inequality here:

brainly.com/question/14098842

#SPJ2


rotate 90 clockwise around the origin (-6,-2) (-3,1) (-1,1) (2,-4)

Answers

The rule for a rotation by 90 about the origin is (x,y)→(−y,x)
so
(-6,-2) ---> (2, -6)
(-3,1)  ---> (-1,-3)
(-1,1)  ---> (-1,-1)
(2,-4)  ---> (4, 2)

Jolene invests her savings in two bank accounts, one paying 4 percent and the other paying 11 percent simple interest per year. She puts twice as much in the lower-yielding account because it is less risky. Her annual interest is 4408 dollars. How much did she invest at each rate? 

Answers

Its 23 200 at the 11% and 46400 at 4%

Jolene invested $46,378.95 at 4 percent and $23,189.47 at 11 percent to achieve her annual interest of $4408 by setting up and solving a system of equations based on her investment strategy.

Jolene invests her savings in two different bank accounts, one with a 4 percent interest rate and another with an 11 percent interest rate. She invests twice as much in the lower-yielding account. To determine how much she invested at each rate given her annual interest of $4408, we can set up a system of equations.

Let's denote the amount invested at 4 percent as x and the amount invested at 11 percent as y. Given that she puts twice as much in the account with 4 percent, we can say that x = 2y. Furthermore, the total interest earned from both accounts is $4408, so the equation for the total interest would be 0.04x + 0.11y = 4408.

Substitute x = 2y into the interest equation to get 0.04(2y) + 0.11y = 4408. After simplification, the equation becomes 0.19y = 4408. Dividing both sides by 0.19 gives us y = 23189.47. Since x = 2y, multiply y by 2 to find x = 46378.95.

Therefore, Jolene invested $46,378.95 at 4 percent and $23,189.47 at 11 percent.

Q=P(R+R) (SOLVE FOR P)

Answers

Isolate the variable by dividing each side by factors that don't contain the variable. p=q/2r

2 1/6 - -8/3 + -4 7/9

Answers

2 1/6 - -8/3 + -4 7/9
Find a common denominator
2 3/18 - -48/18 + -4 14/18 =
2 3/18 + 48/18 - 4 14/18
Turn into improper fractions
39/18 + 48/18 - 86/18
Solve
87/18 - 86/18 =
1/18

1/18 is your answer.
Go on cymath it gives u the answer

I NEED HELP ASAP!!!!!!What are three important principles to follow when you do a close reading and write about it?

Answers

overview
subject
form
would be the answer

What x Value makes this equation true ?
X-3 = 3x + 7

Answers

So what you want to do is move all the variables to one side and numbers to the other.

x-3 = 3x + 7

So first move all the variables to one side:

x - 3x - 3 = 7

Then the numbers.

x- 3x = 7 + 3

Simplify

-2x = 10

Then divide both sides by -2.

-2x = 10

/-2     /-2

x = -5

Will mark brainliest!! The table shows the outputs, y, for different inputs, x:
(need someone to explain it not just give me the answers)

Part A:Do the data in this table represent a function? Justify your answer. (3 points)

Part B: Compare the data in the table with the relation f(x) = 8x − 5. Which relation has a greater value when x = 8? (2 points)

Part C: Using the relation in Part B, what is the value of x if f(x) = 19? (5 points)

Answers

A. its a function. recall if x1=x2 then f(x1)=f(x2). if you had f mapping 12 to 12 and 12 to 16 it wouldnt be.

B. f(8)=64-5=59>8 so f(x) has a greater value.

C. set 8x-5=19 so 8x=24 and x=3

Answer:

give other person brainlist

Step-by-step explanation:

75 cents /hr equals how many dollars/day

Answers

$18. Multiply 75 cents by 24. 24 hours in a day. 
.75 cents times 24 hours is 18. 18 dollars per day.

Last week, 4.3 inches of rain filled a rain gauge. This week, another 3.375 inches of rain filled the gauge. What was the total amount of rain that filled the rain gauge in two weeks? Enter your answer in the box.

Answers

7.675 inches of rain was the total amount in the two weeks

The rain gauge collected a total of 7.675 inches of rain over the two-week period by adding last week's 4.3 inches to this week's 3.375 inches of rainfall.

This question demands basic understanding of mathematical operations and basic mathematical problem solving.

The question asks for the total amount of rain that filled a rain gauge over a two-week period. Last week, the rain gauge collected 4.3 inches of rain, and this week it collected an additional 3.375 inches. To find the total rainfall over the two weeks, we simply add these two amounts together:

4.3 inches (last week's rain) + 3.375 inches (this week's rain) = 7.675 inches

So, as per the above explaination, the rain gauge collected a total of 7.675 inches of rain over the two-week period.

What is 40% of 25? Use an appropriate technique to solve. A. 10 B. 62.5 C. 100 D. 1000

Answers

The correct answer is A.10.
The answer for this is A. 10
In this type of question, you need to transfrom the amount of percentage into fractions first and multiply it as usual.

40%  =   40/100    = 4/10 

So, 40% of 25 is:

4/10 x 25

= 100 / 10

= 10

is 640 ft or 0.5 mi greater?

Answers

0.5 a mile is greater because 1 mile is equal to 5,280 ft.

5,280 / 2 = 2,640 ft.
0.5 is bigger than 640 feet

math question down below

Answers

Average change in altitude per minute
216.12÷2.4
=90.05m
To find the average altitude, you divide. Get rid of the negative sign, (we'll need it later). 216.12 / 2.4 = 90.05. Bring back the negative sign.

You're answer is -90.05m

Hope this helps! ☺♥

An object on Jupiter weighs about 2.5 times as much as the same object would weigh on Earth. If a person on Earth weighs 135 lb., how much does the person weigh on Jupiter? A. 54 lb. B. 137.5 lb. C. 337.5 lb. D. 3375 lb.

Answers

that person would weigh 337.5 pounds

The answer is C. Because 137 x 2.5=337.5 lbs. 

-8 times 0.09 times -0.5

Answers

the answer is 0.36. I don't think u need to explain why, right ;)
The answer is 0.36 and it’s honestly not that difficult you have a calculator

Am on the write path and can someone explain me what I have to do?

Answers

You would have to find the unit rate which is 26 feet per 1 minute (52/2) Otherwise you are correct

A greyhound can jump a distance of 27 feet how many feet will a greyhound travel if it jumps 12 times

Answers

If it jumps 12 times (27 times 12) it will jump a total distance of 324 ft
Problem
A greyhound can jump a distance of 27 feet. How many will a greyhound travel if it jumps 12 times?

Result
A greyhound will travel 324 feet if it jumps 12 times.

Solution
This problem can be solved using multiplication.

Multiply

27 · 12 = 324

A student received an 82$ on an exam if there were 50 questions on the exam which ratio would show the number of questions answered correctly

Answers

he answered 41 questions right.

41:50

Simplify 0.4(−4.5)

help

Answers

you just multiply them together:
0.4 x -4.5 = -1.8
The answer to this question is -1.8

There are 3 times as many boys than girls. If there are 24 more boys than girls, how many students are there in total?

Answers

there are 8 girls total.
32 students in total bc if there is 8 girls u multiply by 3 equals 24 so if u add them in total its 32 students

How do you graph lines using intercepts
Ex. 3y= 1/2x-2 (How would you graph that?)

Answers

Read this article https://weteachscience.org/mentoring/resources/lesson-plans/algebra-1-%E2%80%93-how-to-graph-a-linea...

Can someone help me with this?

Answers

Finding a common denominator, we multiply 8 by 9 to get 72. Multiplying -5/8 by 9/9 and -8/9 by 8/8 using the identity properties, we get -45/72-64/72=-109/72
- 1.51388888889 that's the answer.

Todd wants to know how many numbers between 1 and 50 have only 2 and 5 as prime factors. list all the numbers that have only 2 and 5 as prime factors.Explain how you found your answer.

Answers

10,20,30,40

you know this because if you do prime factorization both 2 and 5 are prime numbers found in those numbers.
10,20,30,40,50

2 and 5 are both factorization numbers

At a pet shop there are 2100 cats and 210 dogs for a total of 2310 pets all together

Answers

That is correct. how did you come up with that.

There are 2100 cats and 210 dogs, totaling 2310 pets. Cats outnumber dogs 10 to 1.

To find the number of cats and dogs separately, let's set up a system of equations.

Let [tex]\( x \)[/tex] represent the number of cats and [tex]\( y \)[/tex] represent the number of dogs.

We're given two pieces of information:

1. There are 2100 cats and 210 dogs for a total of 2310 pets.

[tex]\[ x + y = 2310 \][/tex]

2. There are 2100 cats.

[tex]\[ x = 2100 \][/tex]

We can substitute the value of [tex]\( x \)[/tex] from the second equation into the first equation:

[tex]\[ 2100 + y = 2310 \][/tex]

Now, let's solve for [tex]\( y \):[/tex]

[tex]\[ y = 2310 - 2100 \][/tex]

[tex]\[ y = 210 \][/tex]

So, there are 210 dogs.

To summarize:

- Number of cats [tex](\( x \)):[/tex] 2100

- Number of dogs [tex](\( y \))[/tex]: 210

Other Questions
What is Fredrick Olmstead best known for? When ladies' home journal ceased publication in 2014, it still had plenty of advertisers interested in buying space in the magazine? Why were the Portuguese venturing into the Atlantic Ocean? They were in competition with Spain to discover and conquer the most land in Africa and the Americas. Having finally expelled the Muslim Moors from Iberia, they sought to expand their borders as a means to protect their lands. They wanted to reach the sources of gold, ivory, and enslaved people that Muslim merchants transported. They were convinced by Prince Henry the Navigator, who wanted to put to use new tools and techniques for navigating great distance To what category of elements does an element belong if it is a poor conductor of electricity? (1 point) Was John Winthrop a Quaker Newton's first law of motion states that an object remains at rest unless a(n) ____ force acts on it. a. balanced c. gravitational b. frictional d. unbalanced Please select the best answer from the choice All of the following are examples of limiting factors in an ecosystem except The third level of cell organization is the _____.A. tissue levelB. system levelC. organism levelD. organ level The results of a polygraph test are not admissible in court primarily because A bicycle shop advertised all mountain bikes were priced at 1/4 discount. Select the answers below that represent the ionic compounds in this list: na2so4 h2so4 ch3-ch3 n2o4 cacl2 ca3(po4)2 Which of the following is true of good human relations? How does a "for every" statement show a ratio comparison? joy is planning to purchase a sweater that costs 30$ dollars at her local department store. The sweaters are on sale for for 20% off.Which steps are needed to find the sale price of the sweater in words? Last year, Genas food cart business was $225 in debt. This year, the debt has tripled. Which expressions show how much Genas business is currently in debt? Whom did the people of britain call "the greatest briton" during the bbc contest in 2002, "100 great britons"? What are some of the difficulties in trying to understand someone from a different culture? Recall that a prime number is a natural number whose only factors are itself and 1 (for example, 2, 3, 5, . . . ). the goldbach conjecture, posed in 1742, claims that every even number greater than 2 can be expressed as the sum of two primes. for example, 4 = 2 + 2, 6 = 3 + 3, and 8 = 5 + 3. a deductive proof of this conjecture has never been found. test the conjecture for at least 10 even numbers and present an inductive argument for its truth. do you think the conjecture is true? why or why not? 1.Asking questions for clarification is an example of verbal cue. True or false?2. Smiling is an example of a non verbal cue. True or false?3. Saying "uh-huh" or "yes, I see" is an example of verbal cue. True or false?4. Making eye contact is an example of a non verbal cue. True or false?5. The phrase "tell me more" is an example of a verbal cue. True or false?6. Pharaphrasing is an example of a non verbal cue. True or false?7. I-Messages are examples of verbal cues. True or false? give an example of how you would write a demonstration speech? Steam Workshop Downloader