How many solutions does 9 - 2b = -b have

Answers

Answer 1

Answer:

1

Step-by-step explanation:

b = 9

Answer 2

Answer:

one solution

Step-by-step explanation:

9-2b=b

 -2   -2

9=b


Related Questions

Solve -8 = 2y – 2. Show your work and how to check your solution.

Answers

Answer: y = -3

Explanation:

-8 = 2y - 2
-2y = -2 + 8
y = 6/-2
y = -3

Answer:

y=(-)3

Step-by-step explanation:

(-)8+2=(-)6

​(-)6/2=(-)3

Check:

((-)3x2)-2=(-)8

Which of the following statements is true about the three quadrilaterals? (5 points)
1) E and Fare similar but not congruent.
2) E and G are similar but not congruent.
3) G and F are similar and also congruent.
4) E and G are similar and also congruent.
Ouestion 8 15 points)

Answers

Answer:

1 one os true

2 nd one is true

A system of linear equations is given by the tables. x y -1 1 0 3 1 5 2 7 x y -2 -7 0 -1 2 5 4 11 The first equation of this system is y = x + 3. The second equation of this system is y = 3x − . The solution of the system is ( , ).

Answers

Answer:

The first equation of this system is y =2 x + 3.

The second equation of this system is y = 3x −1 .

The solution of the system is (4,11).

Step-by-step explanation:

PLATO CORRECT

The solution of the system of equations are  (4, 11).

What is an equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 3 = 9 is an equation.

We have,

The first equation of this system is y = 2x + 3.

The second equation of this system is y = 3x - 1

Now,

y = 2x + 3 _____(1)

y = 3x - 1 _______(2)

(1) = (2)

2x + 3 = 3x - 1

3 + 1 = 3x - 2x

x = 4

Now,

Putting x = 4 in (1) or (2)

y = 2 x 4 + 3 = 8 + 3 =  11

y = 3 x 4 - 1 = 12 - 1 = 11

Thus,

The solutions of the system are (4, 11).

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ2

PLEASE HELP now I really need to know​

Answers

Answer:

Step-by-step explanation:

-2.5 + 5n - 1.5n

-2.5 + 3.5n

Option B is the correct answer

Answer:

B

Step-by-step explanation:

so first you got to solve the expression  so -2.5(-1-2n)-1.5

−2.5(1−2n)−1.5n

Use the distributive property to multiply −2.5 by 1−2n.

−2.5+5n−1.5n

Combine 5n and −1.5n to get 3.5n.

your answer is  −2.5+3.5n  

if this is wrong then probably

solve the other expressions to see if u get the same answer

A store has apples on sale for $28.00 for 8 pounds. If an apple is approximately 5 ounces, how many apples can you buy for $224.00

Answers

204.8 apples.

First you would find out how many ounces are in 8 pounds, which would be 128. then do 128/5 to get 25.6 < that would be how many apples are in 8 pounds. Next you would do 224/28 to find out how many of the 8 pounds you can buy for 224 dollars. so you get 8 from that. So now we do 25.6*8 to get 204.8 apples.

204 apples rounded down and 205 apples rounded up

If a quadratic equation has a negative leading coefficient and a discriminant of -40, which of the following is true?

1. The graph will be a parabola that opens down and does not touch the x-axis.

2. The graph will be a parabola that opens up and does not touch the x-axis.

3. The graph will be a parabola that opens down and touches the x-axis once.

4. The graph will be a parabola that opens down and touches the x-axis twice.​

Answers

Negative leading coefficient. Therefore it is the downward paeabola.

Discriminant of -40 therefore the parabola does not touch x-axis

so the answer is 1.

Lucy baked 12 cookies. She baked 6 more and split them up equally between herself and 2 friends. How many cookies did each person have? Which equation represents the problem?

Answers

Answer:

(12+6)÷3=x represents this problem.

Each person had 6 cookies.

Step-by-step explanation:

Lucy baked 12 cookies and then baked 6 more, which means the total number of cookies she baked is equal to 12+6.

Total number of cookies = 12+6

She then split them up equally between herself and her two friends, which means Lucy divided the (12+6) cookies among 3 people.

Let x be equal to the number of cookies each person had.

(12+6) cookies ÷ 3 people = the number of cookies each person had

(12+6)÷3=x

Therefore, the equation that represents this problem is (12+6)÷3=x.

To find the number of cookies each person had, we just have to solve the equation.

(12+6)÷3=x

18÷3=x

6=x

Therefore, each person had 6 cookies.

I hope this helps! Happy holidays :)

Answer:

I hope this helps.

Step-by-step explanation:

A bakery sells 6350 muffins in 2010. The bakery sells 8310 muffins in 2015. Write a linear model that represents the number $y$ of muffins that the bakery sells $x$ years after 2010. The linear model is $y=$ .

Answers

Answer:

y = 392x + 6350

Step-by-step explanation:

Here, we calculate the average rate of change in the number of muffins sold between the two years

Mathematically that will be the difference in number of muffins divided by the number of years

We have this as;

(8310-6350)/(2015-2010)

= 392

an average of 392 muffins were sold in a year

The general form of the equation of a straight line is;

y = mx + c

we have m as 392

so;

y = 392x + c

To get c, we make a substitution

2015 is 5 years after 2010, so x will be 5 and y will still be 8310

so;

8310 = 392(5) + c

c = 8310 - 2960

c = 6350

So the equation is;

y = 392x + 6350

The population of a country divided by its area determines its birth/death rate birth/death rate NIR. NIR. arithmetic density arithmetic density population doubling time. population doubling time. physiological density physiological density

Answers

Answer:

Arithmetic density.

Step-by-step explanation:

The correct answer is arithmetic density. This is because for a country, it is also known as real density and it's defined as the number of people per unit area of total land in that country.

Thus, the population of a country divided by its area determines its arithmetic density

If a right angle triangle has a hypotenuse of length 13 units and a leg of length 7 units, what would be the length of the other leg?

Answers

Pythagorean theorem: A² + B² = C²
(7)² + B² = 13²;
49 + B² = 169;
B² = 130;
B = 11.40
The length of the other leg is 11.40.

The length of the other leg of a right angle triangle is, 10.95 units

What is mean by Triangle?

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

A right angle triangle has a hypotenuse of length 13 units and a leg of length 7 units.

Now, By the Pythagoras theorem, we get;

⇒ Hypotenuse² = Perpendicular² + Base²

⇒ 13² = 7² + Base²

⇒ 169 = 49 + Base²

⇒ Base² = 169 - 49

⇒ Base² = 120

⇒ Base = √120

⇒ Base = 10.95 units

Learn more about the triangle visit;

brainly.com/question/1058720

#SPJ2

The 5th grade class of 2022 will go on a field trip to Tennesee. There will be 219 students and teachers attending the trip. Each bus seats 24 people. Will 9 bussews be enough for the trip?
Explain.

Answers

Answer:

No 9 bus is not enough you would need 10

Step-by-step explanation:

219/24=9.125

WHICH ONE SHOULD I PUT?

Answers

Answer:

42.5

Step-by-step explanation:

How many cubes with side lengths of 1/4 cm does it take to fill the prism?

Answers

Answer:

19 cubes

Step-by-step explanation:

7/4 + 1 + 1 = 4.75

4.75 divided by 1/4 (0.25) is 19

The number of 1/4-cubes that will fill the given prism in the image is: 224 cubes.

What is the Volume of a Prism and a Cube?

Volume of prism = length × width × height

Volume of cube = a³, where a is the side length of the cube.

Number of cubes that will fill the prism = volume of prism / volume of 1 cube

Volume of prism = 1 × 7/4 × 2 = 3.5 cm³

Volume of 1 cube = (1/4)³ = 0.015625 cm³

Number of cubes that will fill the prism = 3.5/0.015625 = 224 cubes.

Learn more about volume of prism and cube on:

https://brainly.com/question/1972490

#SPJ2

(0,-1) (-2,3)

Determining an equation of a line. what's the answer? i rlly need help

Answers

Answer:

y=-2x-1

Step-by-step explanation:

For which values of x would the list below be considered, "NOT a function"?

{(7, 8), (8, 5), (9, 2), (x, 0)}

Answers

Step-by-step explanation:

The values of x would be 7, 8 or 9.

7, 8, or 9 because in order for it to be a function, u need to make sure none of the x values r the same in the ordered pairs. For example in b there r two 7’s which would make it not a function

what is a non linear graph?

Answers

Answer:

A non-linear graph is a graph that is not a straight line. A non-linear graph can be described by an equation.

Step-by-step explanation:

Answer:

a non linear graph is a graph that is not a straight line. it can be described by a equation

Step-by-step explanation:

Consider △RST and △RYX.

Triangle R S T is shown. Line X Y is drawn parallel to side S T within triangle R S T to form triangle R Y X.

If the triangles are similar, which must be true?

StartFraction R Y Over Y S EndFraction = StartFraction R X Over X T EndFraction = StartFraction X Y Over T S EndFraction
StartFraction R Y Over R S EndFraction = StartFraction R X Over R T EndFraction = StartFraction X Y Over T S EndFraction
StartFraction R Y Over R S EndFraction = StartFraction R X Over R T EndFraction = StartFraction R S Over R Y EndFraction
StartFraction R Y Over R X EndFraction = StartFraction R S Over R T EndFraction = StartFraction X Y Over T S EndFraction

Answers

Answer:

B. [tex]\frac{RY}{RS}[/tex] = [tex]\frac{RX}{RT}[/tex] = [tex]\frac{XY}{TS}[/tex], must be true.

Step-by-step explanation:

Similar figures are figures whose angles and sides are similar with respect to a definite ratio when compared.

From the given question, note that ΔRXY is within ΔRST. Given that the two triangles are similar, then their sides can be compare in a form of ratio as:

[tex]\frac{RY}{RS}[/tex] = [tex]\frac{RX}{RT}[/tex] = [tex]\frac{XY}{TS}[/tex]

Therefore by comparing the length of sides of the triangles, option B must be true.

The dimensions of one of two triangles that are similar can be obtained

from the other triangle by multiplying by a scale factor.

The statement that must be true is; [tex]\displaystyle \underline{ \frac{RY}{RS} = \frac{RX}{RT} = \frac{XY}{TS}}[/tex]

Reasons:

The given relationship between the triangles are;

Line XY is drawn within ΔRST to form ΔRYX.

XY is parallel to ST

Given that we have;

Point X on side RT and point Y on side RS of ΔRST

ΔRST is similar to ΔRYX, we get;

The ratio of the corresponding sides are equal, which gives;

[tex]\displaystyle \frac{RY}{RS} = \frac{RX}{RT} = \frac{XY}{TS}[/tex]

Therefore;

The option that gives the statement that must be true is; [tex]\displaystyle \underline{\frac{RY}{RS} = \frac{RX}{RT} = \frac{XY}{TS}}[/tex]

which is the same as the option; StartFraction RY Over RS EndFraction =

StartFraction RX Over RT EndFraction = StartFraction XY Over TS

EndFraction.

Learn more about the relationship between similar triangles here:

https://brainly.com/question/14445094

https://brainly.com/question/13138042

-5(-2 -8)=10+5m what’s the answer to this?

Answers

Answer:

m=8

Step-by-step explanation:

-5(-2 -8)=10+5m

10+40=10+5m -->distributive property

50=10+5m

50-10=10-10+5m--->canceling the 10

40=5m

m=8    (division property)

27x+y=7 xy=5 find x3+y3

Answers

Answer:

Step-by-step explanation:

x^3+y^3 = (x+y)(x^2+y^2-xy) = (x+y)((x+y)^2 - 3xy) = 12(12^2 -3*27) = 12 (144-81) = 12*63 = 630+126 = 756

+ y = 12

xy = 27

x = 3

y = 9

x3 + y3

= 3^3 + 9^3

= 756

10

x + y = 12 eq1  

, x y = 27eq2

from x + y = 12

y = 12 - x

plug in eq1 to eq2

x(12 - x) = 27

12x - x^2 = 27

x^2 - 12x + 27 = 0

(x - 9)(x - 3) = 0

x - 9 = 0, x - 3 = 0

x = 9, x = 3

solving for y

when x = 9

y = 12 - x

y = 12 - 9

y = 3

solving the value of x^3 + y^3

x^3 + y^3 = (9)^3 + (3)^3 = 756 answer//

from the first expression y = 12 - x

substitute into xy = 27 giving

x(12-x) = 27

the quadratic has two solutions for x,y

x = 3 and y = 9 or x = 9 and y = 3  

either way,

x^3 + y^3 = 3^3 + 9^3 = 756

...Show more

00

The length of the base of an isosceles triangle is x. The length of a leg is 4x - 3. The perimeter of the triangle is 39. Find x.
X=

Answers

Answer:

The value of x is 5.

Step-by-step explanation:

Given that:

Base of triangle = b = x

Length of side of triangle = a = 4x-3

Perimeter = 39

In an isosceles triangle, two sides of the triangle are equal.

Perimeter of an isosceles triangle is given by,

P = 2a+b

Putting the values

39 = 2(4x-3)+x

39=8x-6+x

39=9x-6

39+6=9x

45=9x

9x=45

Dividing both sides by 9

[tex]\frac{9x}{9}=\frac{45}{9}\\x=5[/tex]

Hence,

The value of x is 5.

Twice the difference of a number and 9 is at least 17.

Answers

Answer:

x ≥ 12.5

Step-by-step explanation:

2(x-9) ≥ 17---Use Distributive Property

2x-18 ≥ 17

2x-18+18 ≥ 17+18

2x ≥ 25

2x/2 ≥ 25/2

x ≥ 12.5

I hope this helps!

Is this correct, I chose A

Answers

Answer:

I’m pretty sure

Step-by-step explanation:

Answer:

good job

Step-by-step explanation:

Which equation best models the set of data in this table?

Answers

Answer:

the answer is A

Step-by-step explanation:

The correct answer is option A which is y = 33√x + 32.7.

What is an expression?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

We will check the expression at the different values of x:-

y = 33√x + 32.7.

At x = 1

Y = 33 √1 + 32.7

Y = 33 + 32.7  = 65.7

At x = 2

Y = 33√2 + 32.7

Y = 79.36

By putting the value of x as input we are getting the almost same value of y given in the table.

Therefore the correct answer is option A which is y = 33√x + 32.7.

To know more about Expression follow

https://brainly.com/question/723406

#SPJ2

somebody help please
after this i will go to bed

Answers

0.6 = the fourth graph 0.2=the third graph 20=the first graph 40=the second graph
I hope this helps

PLEASE HELP!!!!!! YALL WILL GET 100 POINTS

Answers

Answer:

??

Step-by-step explanation:

Slope intercept form- y=-2x+4
graph
x intercept is -2
y intercept is-4

Look at my most recent question (other than this one)
it has this pic:

Answers

Answer:

okay i will right now

9=16=^g4xu explanation is because look at the integers it’s very even so just do this equation

A small company manufactures three different electronic components for computers.
Component A requires 2 hours of fabrication and 1 hour of assembly; component B
requires 3 hours of fabrication and 1 hour of assembly; and component C requires 2
hours of fabrication and 2 hours of assembly. The company has up to 1,000 labor hours
of fabrication time and 800 labor hours of assembly time available each week. The
combined total of components A, B, and C can’t exceed 420 in a week. The profit on
each component A, B, and C is $7, $8, and $10 respectively. How many components of
each type should the company manufacture each week in order to maximize profit
(assuming that they can sell all that they manufacture)? What is the maximum profit

Answers

Answer:

Modays

Step-by-step explanation:

They suck.

The company should manufacture 200 units of component A, 120 units of component B, and 100 units of component C each week, resulting in a maximum profit of $3360.

Define the variables:

a = Number of component A units produced each week

b = Number of component B units produced each week

c = Number of component C units produced each week

Set up the constraints:

Fabrication hours: 2a + 3b + 2c ≤ 1000

Assembly hours: a + b + 2c ≤ 800

Combined total of components: a + b + c ≤ 420

Set up the objective function: maximize: 7a + 8b + 10c

Now, we have the problem set up.

We can use linear programming techniques to find the optimal solution.

Solve the linear programming problem:

By applying the Simplex method or any other optimization algorithm, we can find the optimal solution.

After performing the calculations, the solution is as follows:

a = 200 (Number of component A units produced each week)

b = 120 (Number of component B units produced each week)

c = 100 (Number of component C units produced each week)

Calculate the maximum profit:

Using the values obtained in Step 4, we can calculate the maximum profit:

Profit from component A units: 7 x 200 = $1400

Profit from component B units: 8 x 120 = $960

Profit from component C units: 10 x 100 = $1000

Total maximum profit: $1400 + $960 + $1000 = $3360

So, the company should manufacture 200 units of component A, 120 units of component B, and 100 units of component C each week to maximize profit, resulting in a maximum profit of $3360.

To learn more about function visit:

https://brainly.com/question/8892191

#SPJ2

Mary has scored 78 , 60 , 82 , 94 , and 88 on her previous five tests . What score does she need on her next test so that her average ( mean ) is 80?​

Answers

Answer:

She needs to score 78 on her next test

Step-by-step explanation:

[tex]\frac{78+60+82+94+88+x}{6}=80[/tex]

Collect like terms;

[tex]\frac{402+x}{6}=80[/tex]

Multiply both sides by 6;

402 + x = 480

Subtract 402 from both sides;

x = 78

The price of a trampoline before tax is $300. The salesvtax is 4%​

Answers

Answer - $312

300 x 1.04 = 312

Answer:

The total price is $312 and the sales tax is 12

Step-by-step explanation:

300 x 0.04= 12

300 + 12 = 312

What is 3x + -2x + 5 + -9

Answers

Answer:

x= -4

Step-by-step explanation:

The answer it ‘ s x+-4
Other Questions
The iliac region isto the lumbar region.liminalinferioranteriordistal My father was a justice of the peace, and I supposed he possessed the power of life and death over all men and could hang anybody that offended him. This was distinction enough for me as a general thing but the desire to be a steamboatman kept intruding, nevertheless. I first wanted to be a cabin-boy, so that I could come out with a white apron on and shake a tablecloth over the side, where all my old comrades coulds me; later I thought I would rather be the deckhand who stood on the end of the stage-plank with the coll of rope in his hand, because he was particularly conspicuous. But these were only day-dreams,-they were too heavenly to be contemplated as real possibilities. By and by one of our boys went away. He was not heard of for a long time. At last he turned up as apprentice engineer or 'striker' on a steamboat. This thing shook the bottom out of all my Sunday-school teachings. That boy had been notoriously worldly, and I just the reverse; yet he was exalted to this eminence, and I left in obscurity and misery. There was nothing generous about this ellow in his greatness. He would always manage to have a rusty bolt to scrub while his boat tarried at our town, and he would sit on the inside guard scrub it, where we could all see him and envy him and loathe him. And whenever his boat was laid up he would come home and swell around the town in his blackest and greasiest clothes, so that nobody could help remembering that he was a steamboatman; and he used all sorts of steamboat technicalities in his talk, as if he were so used to them that he forgot common people could not understand them. (from Life on the Mississippi by Mark Twain) Based on the passage, which is the greatest reward of getting a job on a steamboat? 1. making the other boys jealous2. escaping small town boredom 3. getting away from a demanding father 4. experiencing adventure on the river Algebra 1 IMPORTANT Describe the relationship 18What is a lever? On which principle does it work?Is velocity ratio of a machine affected by applying Which are characteristics of epithelial cells? Select two options. are unable to be used for secretion of materialsmain cells of the nervous systemfound lining many areas that contact the external environmentplays a role in protectioncarry oxygen through the bodymake up the skeletal muscle Can someone help me please!!! In a formal argument, how do reasons typically differ from evidence?A)Reasons are debatable statements that weaken the argument's main point.B)Evidence consists of facts and statistics that are debatable or arguable.C)Reasons are logical explanations while evidence consists of facts or examples.D)Evidence is made up of personal opinions and individual interpretations. Which statement best describes the United States and the Soviet Union during World War II? the court of appeals Emmett gathered some data to compare the monthly cost of renting a one-bedroom apartment in Dallas and Austin. The data collected for the monthly cost of renting a one-bedroom apartment in Dallas is shown below.$994 $1,322 $1,075 $1,189 $1,172$1,465 $1,215 $930 $1,090 $1,288The data collected for the monthly cost of renting a one-bedroom apartment in Austin is shown below.$1,450 $1,400 $1,375 $1,389 $1,296$900 $1,250 $1,100 $950 $1,495Select ALL the statements that are true about the Austin Data.This city's data had the higher interquartile range of the two cities by $87.This city's data had the higher median monthly apartment cost of the two cities by $155.this city's data had the lower average apartment cost because the mean was $86.50 less than that of the other set of data.This city's data had the greater variability among monthly apartment costs because the standard deviation was $49.13 more than that of the other set of data. The photoelectric effect is theofelectrons when electromagnetic radiation, such aslight, hits a material.DONE What is a sphere? THIS IS SCIENCE PLZZ FAST PLEASEEEEE HELPPPPP ASAPPPPP What is a Didgeridoo?.world woodwindOB.skillful playerOC. rhythmic effectODmelodic enhancement During which method of separation is one of the components of the mixture lost?A.) distillationB.) magnetic separationC.) screeningD.) evaporation PLEASE HELP!!!Compare the investment below to an investment of the same principal at the same rate compounded annually. Explain the difference between osteopenia and osteoporosis. Frida Kahlo painted herself wearing ethnic clothing in her self-portraits. The influence of Mexican folkloric art on her work can be seen in her use of bold colors and the ex-voto style. Her painting style is a example of an artist being influenced by Hola, amigos. Mi nombre es Patricia y soy de la Repblica Dominicana. Mi costumbre para la vspera de Ao Nuevo es comer doce uvas. Esta costumbre se usa en la Repblica Dominicana, Espaa y muchos otros pases hispanos. A mi me encanta la vspera de Ao Nuevo porque comparto I share con mis amigos y mi familia. Yo decoro la sala de mi casa y mi mam cocina una cena grande para toda la familia. Please help me.Find the distance between the points A and B shown on thecoordinate plane.AA. 13 unitsB. 11.5 unitsC. 12.1 unitsD. 11.2 units