Consider the following equations and name the property of equality used to solve for the variable.
A. x + 3.75 = 7

B. –3b = 18

C. StartFraction m Over 5 EndFraction = negative 25

D. m – 4 = 9

Answers

Answer 1

9514 1404 393

Answer:

  A. subtraction

  B. division

  C. multiplication

  D. addition

Step-by-step explanation:

Observe what is done to the variable. Choose the operation that turns the unwanted value into the appropriate identity element.

A. 3.75 is added. To make that value be 0, we subtract 3.75.

B. -3 is multiplied. To make that value be 1, we divide by -3.

C. m is divided by 5. To make that 1/5 multiplier be 1, we multiply by 5.

D. 4 is subtracted. To make that value be zero, we add 4.

_____

Additional comment

Since subtraction is the same as addition of the opposite, and division is the same as multiplication by the reciprocal, the only two properties we really need are the addition property and multiplication property. Your grader may disagree.

Answer 2

Answer:

Other dude is right.

Step-by-step explanation:

Be safe, have an amazing day. :)


Related Questions

pls help will mark brainliest

Answers

Answer:

C

Step-by-step explanation:

The other answers have inputs (x) that have multiple outputs (y) which goes against the definition of a function.  For example in answer D zero has both the outputs of 7 and 52 which can not happen in order to be a function.  However outputs can have multiple inputs just not the other way around.

The graphs below have the same shape. What is the equation of the blue graph?

Answers

Answer:

the answer is D

Step-by-step explanation:

Answer:

werwegwrvetvytby46bu46unu46e8mn667mmmm

Step-by-step explanation:m7

ui 6ei 67i77777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777mmm

The scale on a map is 1cm = 250 km. What would be the distance on the map, if the actual distance between the two cities is 1,000km? *​

Answers

Answer:

so if its actually 1000 and that map thing is 250

250 goes into 1000 4 times so

4cm

Hope This Helps!!!

Solve using suitable properties. Also mention the names of the property used. -3/4 × 4/5 - 1/2 × 1/4 +4/5 × 7/5​

Answers

Answer:

0.395

Step-by-step explanation:

We need to solve the given expression.

[tex]-\dfrac{3}{4}\times \dfrac{4}{5}-\dfrac{1}{2}\times\dfrac{1}{4}+\dfrac{4}{5}\times \dfrac{7}{5}[/tex]

We can also write it as :

[tex]-\dfrac{3}{4}\times \dfrac{4}{5}+\dfrac{4}{5}\times \dfrac{7}{5}-\dfrac{1}{2}\times\dfrac{1}{4}\\\\=\dfrac{4}{5}(\dfrac{-3}{4}+\dfrac{7}{5})-\dfrac{1}{2}\times\dfrac{1}{4}[/tex](Distributive property is used)

So,

[tex]=\dfrac{4}{5}\times \dfrac{13}{20}-\dfrac{1}{2}\times\dfrac{1}{4}\\\\=\dfrac{4}{5}\times \dfrac{13}{20}-\dfrac{1}{8}\\\\=\dfrac{13}{25}-\dfrac{1}{8}\\\\=0.395[/tex]

So, the value of the given expression is equal to 0.395.

Henri bought a swim suit at a cost of $8. Which statements are true regarding the cost of the suit?

Answers

Answer:

What are the statements?

Step-by-step explanation:

What are the solutions to the quadratic equation 3(x – 42 = 752

Answers

X=292.6

Step 1: distribute 3 through parentheses
3x-126=752

Step 2: move the constant to the right and change it sign
3x= 752+126

Step 3: add the numbers
3x= 878

Step 4: divide both sides by three
X= 878/3 or 292.6

help leee plzzzzzzzbbbnbbbb

Answers

The solution is where the two lines intersect.
the answer would be d i think

Is 7 1/5 times 49 7/5 equivalent to 343

Answers

Step-by-step explanation:

7 1/5=36/5

49 7/5=252/5

[tex] \frac{36 \times 252}{5 \times 5} \\ = \frac{9072}{25} \\ = 362.88[/tex]

not equal to 343

Brainliest please~

Find the area of the square whose length is 3.5 inches?

Answers

Answer:

[tex]12.25[/tex]

Step-by-step explanation:

Area of square is

[tex] {s}^{2} [/tex]

where s is the side length.

3.5 is s so the answer is

[tex]3.5 {}^{2} = 12.25[/tex]

Answer:

Area = 12.25 square inches

Step-by-step explanation:

[tex]Given \ length \ of \ a \ side \ of \ the \ square = 3.5 \ inches \\ \\Area \ of \ a \sqaure \ = side \times side = 3. 5 \times 3.5 = 12.25 \ in^2[/tex]

Help and explain please !!!

Answers

Answer:

D

Step-by-step explanation:

f(x) = x-4

f(3.2) = -3.2-4

= -7.2

The question is in the image

Answers

Answer:

$9

Step-by-step explanation:

f(x) = - 25 ( x - 9 )² + 200

when x = 5 ,

f(5) = - 25 ( 5 - 9 )² + 200 = - 200

when x = 9 ,

f(9) = - 25 ( 9 - 9 )² + 200 = 200

when x = 10 ,

f(10) = - 25 ( 10 - 9 )² + 200 = 175

when x = 15 ,

f(15) = - 25 ( 15 - 9 )² + 200 = -700

∴ when price = $9

the company receive the maximum profit

Answer:

9$

Step-by-step explanation:

WILL GIVE BRAINLIEST AND 20 POINTS!
PLEASE SHOW WORK1
f={(−2,−5),(3,−1),(1,−1)} and g={(1,1),(−1,−2),(−4,1),(−3,−1)}
Find (f+g)(1).

Answers

Answer:

[tex](f+g)(1)=0[/tex]

Step-by-step explanation:

We are given that:

[tex]\displaystyle f=\left\{(-2, -5), (3, -1), (1, -1)\right\}\text{ and } \\ \\ g = \left\{(1, 1), (-1, -2), (-4, 1), (-3, -1)\right\}[/tex]

And we want to find the value of (f + g)(1).

Recall that this is equivalent to:

[tex]=f(1)+g(1)[/tex]

According to the set, f(1) = -1 and g(1) = 1. Hence:

[tex]=(-1)+(1)=0[/tex]

The width of this rectangle is measured as 19.4 correct to 1 decimal place. What is the lower bound for the area of the rectangle

Answers

Answer:

:D

Step-by-step explanation:

19.35 = 7062.75 mm²

Score for Question 2: ___ of 5 points) 2. Write the equation of the circle in general form. Show your work.

Answers

Answer:

[tex]x^2 + y^2 + 2x - 2y - 7 = 0[/tex]

Step-by-step explanation:

Given

See attachment for circle

Required

The circle equation

First, we get the radius of the circle.

From the attachment, we have:

[tex]r = 3[/tex]

Next, the center of the circle

[tex](h,k) = (-1,1)[/tex]

The equation of the circle is:

[tex](x - h)^2 + (y - k)^2 = r^2[/tex]

This gives:

[tex](x - -1)^2 + (y - 1)^2 = 3^2[/tex]

[tex](x +1)^2 + (y - 1)^2 = 3^2[/tex]

Expand

[tex]x^2 + 2x + 1 + y^2 - 2y + 1 = 9[/tex]

Collect like terms

[tex]x^2 + y^2 + 2x - 2y + 1 + 1 - 9 = 0[/tex]

[tex]x^2 + y^2 + 2x - 2y - 7 = 0[/tex]

Hence, the equation in general form is:

[tex]x^2 + y^2 + 2x - 2y - 7 = 0[/tex]

Graph: Y - 3 = 1/2 (x+2)

Answers

Answer:

see graph

Step-by-step explanation:

Personally I put into slope intercept form before graphing

y - 3 = 1/2 (x+2)

y -3 = 1/2x + 1

y = 1/2x + 4

4 is y-intercept    

1/2 is slope. [tex]\frac{Rise= 1}{Run= 2}[/tex]

f(x)=-x^2-9x find f(-2)

Answers

Answer:

14

Step-by-step explanation:

put -2 where x is

f(x)=-x^2-9x

f(-2)= -(-2)^2 -9(-2)

f(-2)= -4 + 18

f(-2)= 14

I need help figuring out what the answer is.

Answers

Answer:

A

Step-by-step explanation:

which of the gollowing cirxles lie completely within the third quadrant? Check all that apply​

Answers

Option B

Option C

These two circles lie completely within the third quadrant

Answered by GAUTHMATH

Mitchell and his friends went to the candy store, where they can buy candy by the pound. Mitchell bought 1.2 pounds of candy. His friends bought 2.3 pounds and 1.8 pounds. About how many pounds of candy did they buy altogether?
rounding

Answers

Answer:

5.3 pounds

Step-by-step explanation:

1.2 plus 1.8 is 3 pounds

then you add 3 pounds plus 2.3 lbs and you get

5.3 pounds

Answer:

5.3

Step-by-step explanation:

If you add how much Mitchell bought (1.2) and how much his friends bought (2.3), (1.8) therefore the answer is 5.0 or rounded is just 5

Helpppp me plzzzzzzxzz

Answers

Can you please take a better picture so I can see it better

1.A dozen bananas cost nu; 24? a/how much do 3dozen bananas cost? b/what is the cost of 6bananas? c/what is the cost of 1banana's?​

Answers

Answer:

12 banana cost=Rs.24

now

a)3dozen bananas=24/12×36=Rs.72

b)cost of 6bananas =24/12×6=Rs.12

c)cost of 1 banana =24/12×1=Rs.2

Find the equation of the line shown.
У.
4
3
2
х
4-3-2-19
B 46

Answers

Answer:

The equation is:

Y=2x-1

Its about similar figures and scale drawing
No links

Answers

Answer:

5 in

Step-by-step explanation:

by doing a proportion of 2/4 for the known sides, you can find that the smaller triangle has sides that are half of the larger one. so 10/2 equals 5

Answer: X = 5

Step-by-step explanation:

4 divided by 2 = 2

So 10 divided by 2 = 5

I need help with this it’s saying the “blank” Method would be the best for solving this system of equations

6x + 4y=8
-x+4y=12

Answers

Answer:

-12+4y=x..............1

6(-12+4y)+4y=8

-72+24y+4y=8

28y=80

y=3.33

-12+4(3.33)=x

1.32=x

Please helpppp
Find l.

Answers

Answer:

Step-by-step explanation:

radius of base=8/2=4 ft

l²=4²+9²=16+81=97

l=√97 ft

1.) What is the domain and range of the function in the graph?
2.) What is the average rate of change over the interval [1, 0]?

Answers

Answer:

Domain → (-∞, ∞)

Range → (-2, ∞)

Step-by-step explanation:

1). Domain of a function is defined by the input values (set of x-values) and Range of the function is defined by the output values (set of y-values).

From the graph attached,

Function is defined for all real values of x.

Therefore, domain of the function will be (-∞, ∞).

On y-axis values of the function vary from -2 (excluding 2) to positive infinity.

Therefore, range of the function will be (-2, ∞).

2). Average rate of change of a function in the interval (a, b) is defined by,

Average rate of change = [tex]\frac{f(b)-f(a)}{b-a}[/tex]

By using this expression we can find the average rate of change in the given interval.

Please give the correct interval for which the average rate of change is to be calculated.

Which of the following represents the divisor and the dividend for the
synthetic division problem below?


Answers

Answer:

option D is correct

Step-by-step explanation:

Given data

From the given expression/options of answers, option D is correct

This is because the given expression in the attached file corresponds to the terms in option D

john owns a truck. he rents out the truck with himself as a driver for $75 per hour. last month john earned $6375 how many of hours of work is that for john and his truck.

Answers

it would be 85 hours because 6375÷75=85

what is the equation of the line shown?

Answers

Answer:

y=1/2x+1/2

Step-by-step explanation:

the line intercepts at (0,0.5) which makes the y-intercept 1/2 and if you look at the slope, it increases 1 unit up and 2 units to the right so the slope is also 1/2

The equation of line is y= 1/2x+ 1/2.

What is Slope?

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the

change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx where, m is the slope

Given:

Take points from the graph as (-1, 0) and (3, 2).

So, slope of line = (2 - 0)/ (3 -(-1))

                            = 2/4

                            = 1/2

Now, slope- intercept form

y- 0 = 1/2 ( x-(-1))

y= 1/2x + 1/2

Hence, the equation of line is y= 1/2x+ 1/2

Learn more about slope here:

https://brainly.com/question/3605446

#SPJ2

Use the zero product property to find the solutions to the equation x2 + 12 = 7x.
x = –4 or x = 3
x = –4 or x = –3
x = –3 or x = 4
x = 3 or x = 4

Answers

Answer:

x= 4, 3

The choose (d)

Step-by-step explanation:

x²+12=7x

x²-7x+12=0

(x-3)(x-4)=0

x=3

or x=4

Answer:

D

Step-by-step explanation:

on edge

Other Questions
Advantages and disadvantages of communication in Canada if you borrow to buy a new car with a note, which of the following items on the balance sheet will be affected?answer optionsassests only assets and debtsunable to determinedebts only Review the following statements and determine which is (are) correct regarding an adjusted trial balance and how it is used In preparing financial statements. (Check all that apply.) Multiple select question. The adjusted trial balance includes all accounts and balances appearing in financial statements. The ending Retained Earnings account balance on the balance sheet is taken directly from the adjusted trial balance. Financial statements are easier to prepare using the adjusted trial balance than the general ledger. The balance sheet is the first financial statement prepared. The ending Retained Earnings account balance on the balance sheet is transferred from the statement of retained earnings. The income statement is the first financial statement prepared after preparing the adjusted trial balance. How do the details about Guyana reveal the author'spurpose?ourI sawushnichanteasonThey show that the author wants to persuade readersthat her family was important.They show that the author wants to inform readers bydescribing the old sugar estates.They show that the author wants to entertain readerswith stories about the plantations.They show that the author wants to inform readersabout the fate of the family's house.an oldon the Please help me i will give brainlest please i need help A car starts from rest .If its acceleration is 1.5m/s^2 in 1.5 seconds. then calculate the distance traveled by it. Cafe Italiano pays $70,000 for the trademark rights to a line of specialty sandwiches. After several years, sales for this line of specialty sandwiches are disappointing, and management estimates the total future cash flows from sales will be only $40,000. The estimated fair value of the trademark is now $20,000. What is the amount of the impairment loss Read this prompt for an essay assignment.Write an essay describing what you think would be a good solution to the overfishing problem.Which essay structure is most appropriate for this prompt?Select one:O a. analysisO b. definitionO c. persuasionO d. summarize A company purchased $1,800 of merchandise on July 5 with terms 2/10, n/30. On July 7, it returned $200 worth of merchandise. On July 28, it paid the full amount due. Assuming the company uses a perpetual inventory system, and records purchases using the gross method, the correct journal entry to record the payment on July 28 is: Calculate the Empirical Formula for the following compound:0.300 mol of S and 0.900 mole of O. An amusement park has discovered that the brace that provides stability to the ferriswheel has been damaged and needs work. The arc length of steel reinforcement thatmust be replaced is between the two seats shown. The sector area is 28.25 squarefeet and the radius is 12 feet.Brace that providesA: 4.708B: 2.669 C: 9.417D: 2.354stability to the rideWhat is the length of steel that must be replaced?04.708 feet 11) Methane and oxygen react to form carbon dioxide and water. What mass of water is formed if 0.80 g of methane reacts with 3.2 g of oxygen to produce 2.2 g of carbon dioxide A hot metal plate at 150C has been placed in air at room temperature. Which event would most likely take place over the next few minutes? Molecules in both the metal and the surrounding air will start moving at lower speeds. Molecules in both the metal and the surrounding air will start moving at higher speeds. The air molecules that are surrounding the metal will slow down, and the molecules in the metal will speed up. The air molecules that are surrounding the metal will speed up, and the molecules in the metal will slow down. Mark this and return Click to read "Loveliest of Trees, the Cherry Now" by A. E. Housman. Thenanswer the question.Which line(s) from the poem best develop(s) the author's idea that peopleshould appreciate life because it is short?A. Loveliest of trees, the cherry now / Is hung with bloom along thebough.B. And since to look at things in bloom/Fifty springs are little room.C. Now, of my threescore years and ten, / Twenty will not come again,gain.D. Wearing white for Eastertide. Critical Chain Project Management (CCPM) attempts to keep the most highly demanded resource busy on critical chain activities, but not overloaded.a. Trueb. False Which term is used to designate an economic agent appointed to act on behalf of smaller investors in collecting information Given the points (-7, 9) and (5, 5) find the slope.m= Find xHelp me please 1/f = 1/d + 1/d' How do I find d'? Translate the problem into a mathematical sentence, using was your variablename. Do not use spaces in your answer.Lisa bought 15 CDs in December. Of those, 3 were jazz, the rest were worldmusic. How many world music discs did she buy?HELPPP