What is the value of k?

2k+9=7−3k


k=−2

k=−0.4

k = 2

k = 3.2

Answers

Answer 1

Answer:

k = -0.4

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

Identify

2k + 9 = 7 - 3k

Step 2: Solve for k

[Addition Property of Equality] Add 3k on both sides:                                  5k + 9 = 7[Subtraction Property of Equality] Subtract 9 on both sides:                        5k = -2[Division Property of Equality] Divide 5 on both sides:                                 k = -0.4

Related Questions

Complete each ordered pair so that it is a solution of the given linear equation. x - 3y=4;(.-3), (-11, ) The first ordered pair is 0-3).​

Answers

Answer:

Step-by-step explanation:

x - 3y = 4

x - 3(-3) = 4

x + 9 = 4

x = -5

(-5, -3)

-11 - 3y = 4

    - 3y = 15

        y = -5

(-11, -5)

I don't see how (0, -3) could be a solution to the equation.

the rice field land preparation can be completed by 8 farmers in 25 days. if 7 more farmers join the team 5 days after starting work on the job,how many more days are needed to complete the job?

Answers

Answer:

1.8 if its wrong im sorry

Step-by-step explanation:

At the gym , Lucy did 12 more pushups than Jeremy. If Jeremy did 25 push-ups how many push-ups did Lucy do.

Answers

lucy did 37 pushups

Answer:

Lucy did 37 Push-up

Given:

Lucy 12 More than Jeremy

Jeremy 25

Step-by-step explanation:

If Lucy did 12 more than Jeremy that given you that It "Addition"

so 12+ 25 = 37

Therefore, Lucy did 37 Push-up.

I don’t wanna fail if you know the answer pls tell me

Answers

0.12 is the correct answer

Ajar contains 3 red and 5 green balls identical in all aspects except color. If two balls are drawn at random, then the probability that the two balls drawn are not green is​

Answers

Answer:

3/28.

Step-by-step explanation:

Total of 8 balls in the jar.

Prob (first one not green (= that its red) = 3/8

Prob ( Second one is also red) = 2/7.

So probability that both are not green = 3/8 * 2/7

= 6/56

= 3/28.

A store buys 10 shirts at a whole sale price of $5 each. They want to mark up the
price by 50%. How much do they sell each t-shirt for?
$100
$7.50
$55
$5.50
PLS I NEED HELPPP

Answers

Answer:

the answer is 5.50 or the last one

Step-by-step explanation:

hope this helps

Answer:

answer is $7.5

Step-by-step explanation:

1shirt=$5

10 shirt= ?

10*5= $50

$5= 100%

what about 150%

(5*150)÷100= $7.5

If3r + 5y = 13 and 6r + 7 y = 20, find the value of

Answers

Answer:

Step-by-step explanation:

Pls help I’ll brainlest

Answers

Answer:

Here are the unscramabled words

Step-by-step explanation:

1. Observation

2. Hypothesis

3. Results

Thank you! Please Brainliest! :)

а
Mamadou has a points card for a movie theater.
• He receives 55 rewards points just for signing up.
• He earns 7-5 points for each visit to the movie theater.
• He needs at least 100 points for a free movie ticket.
.

Answers

Answer:

7· 5n + 55 ≥ 100 is required inequality

Step-by-step explanation:

Let he visit be theater x time

→ for new movie ticket

→55+7·5xn≥100

→7·5n+55≥100

Hence, 7· 5n + 55 ≥ 100 is required inequality  

Answer:

Inequality: 7.5v+55≥100

Answer: v≥6

Step-by-step explanation:

Have a good day :)

A baker packed 24 cupcakes into each box. After he had packed 37 boxes of cupcakes, there were 248 cupcakes left. How many cupcakes were there altogether?

Answers

Hope this helps have a great day!!!!!

Express your answer in scientific notation. 0.00045 – 2.5-10-5​

Answers

Answer:

17.49955

Step-by-step explanation:

Hope this helps

Im stuck on this anyone know it?

Answers

Answer:

The first one is correct

Step-by-step explanation:

-2/3,0.6,3/4,-7/4,0,3 from least to greatest

Answers

Answer:

-7/4 < -2/3 < 0 < 0.6 < 3/4 < 3

Step-by-step explanation:

Quadrilateral EFGH is the image of ABCD after a transformation or sequence of transformations.

Which could be the transformation or sequence of transformations?

Select all that apply.

Answers

Answer: A

B

D

Step-by-step explanation:just trust me bro its the answer

The transformation is the rotation of 180° about the origin. Therefore, option B is the correct answer.

Given that, quadrilateral EFGH is the image of ABCD after a transformation or sequence of transformations.

We need to find which could be the transformation or sequence of transformations.

What are the transformations?

A function, f, that maps to itself are called the transformation, i.e., f: X → X. The pre-image X becomes the image X after the transformation. This transformation can be any or the combination of operations like translation, rotation, reflection, and dilation. The translation is moving a function in a specific direction, rotation is spinning the function about a point, reflection is the mirror image of the function, and dilation is the scaling of a function.

Rotation 180°: The rule for a rotation by 180° about the origin is (x,y)→(−x,−y).

From quadrilateral EFGH to the image of ABCD the transformation is the rotation of 180°.

Therefore, option B is the correct answer.

To learn more about the transformation visit:

https://brainly.com/question/11709244.

#SPJ2

Karen is joining a book club. To join, she must buy two books, and then she will get one free book. The following are the prices for the 8 books being offered: A. $29.50 E. $16.25 B. $25.00 F. $19.98 C. $18.00 G. $49.00 D. $39.50 H. $17.98 Karen wants to select her books with the maximum dollar value and yet pay as little as possible. What three books should she select? A) A, C, D
B) A, B, G
C) C, E, H
D) E, G, H​

Answers

Answer:

the answer are is c,e,h because they have low prices

16. Mr. Cho owes the bank $120. He borrows money to buy 12 coffees at
$1.25 each for the all the math teachers. How much does he owe now? *

Answers

Answer:

$135

Step-by-step explanation:

120+(12*1.25)

120+15

135

Steven drove 12,060 miles in the last 12 months. On average, how many miles did Steven drive each month?

Answers

The average distance traveled by Steven in 1 month is 1,005 miles.

What is the average?In plain English, an average is a single number chosen to represent a group of numbers; it is often the sum of the numbers divided by the number of numbers in the group. The average of the numbers 2, 3, 4, 7, and 9 is, for instance, 5. The average is the ratio created by dividing the total number of figures in a set by the total number of figures. Scoring an average of 85 on the test means may signify a value in the middle of two extremes or the simple average.

So, average miles traveled in 1 month:

Distance Steven drove is 12060 miles.Distance traveled in 12 months.

So, the average distance traveled in 1 month is:

12060/12 1005 miles

Therefore, the average distance traveled by Steven in 1 month is 1,005 miles.

Know more about averages here:

https://brainly.com/question/20118982

#SPJ1

Answer:

The average distance traveled by Steven in 1 month is 1,005 miles.

Step-by-step explanation:

Find the slope and y-intercept for this table.​

Answers

Answer:

See below:

Step-by-step explanation:

To find the slope, we use the following formula:

[tex]\frac{y_{2} - y_{1} }{x_{2} - x_{1} }[/tex]

For this case, we can use (6,60) as the first set of points.

We can use (4,70) as the second set of points.

Now, we can use the formula, 70-60 is for the top of the fraction (10)

We can do 4-6 to find the bottom, which is (-2)

Now, if we add the fraction back we get -> 10/-2 which is -5 for slope!

To find out the y intercept, it in simple words is "What is y when x is 0?".

We can do that by using the slope intercept formula: [tex]y=mx+b[/tex].

Once we insert our slope which is -2 we get: [tex]y=-2x+b[/tex]

We can now substitute a point, lets use (6,60) so we can find out b.

We now get the equation: [tex]60=-5(6)+b[/tex].

If we solve for that we get 90!

Once we input that, we get, [tex]y=-5x+90[/tex]

Now we put in x as 0 and we get our y intercept as 90!

If this answer helped, consider marking as brainliest!!

Write an inequality to represent this situation (1 point):
Jake earned more than $49 dollars.

Answers

The inequality that represents the situation is:

[tex]E_J > 49[/tex].

Jake earnings are unknown, so it is going to be represented by a variable, that we are going to call it [tex]E_J[/tex].

His earnings are of more than 49 dollars, that is, [tex]E_J[/tex] is greater than $49, which means that the following inequality models this situation:

[tex]E_J > 49[/tex].

A similar problem, also involving an inequality built to represent a situation, is given at https://brainly.com/question/22312773

Simplify 11y^2+10y-9y^2-8y+5y^0

Answers

Answer:

2y^2 + 2y + 5

Step-by-step explanation:

Hope this helps :)

Which pairs of quadrilaterals can be shown to be congruent using
rigid motions?
Select Congruent or Not
Congruent for each
pair of quadrilaterals.
Not
Congruent
Congruent
quadrilateral 1 and
quadrilateral 2
quadrilateral 1 and
quadrilateral 3
quadrilateral 1 and
quadrilateral 4
quadrilateral 2 and
quadrilateral 3
quadrilateral 2 and

Answers

Rigid transformation do not alter the sides and angle measurements of a shape.

The true statements are:

quadrilateral 1 and  quadrilateral 2 - Not congruent quadrilateral 1 and  quadrilateral 3 - Not congruent quadrilateral 1 and  quadrilateral 4 - Not congruent quadrilateral 2 and  quadrilateral 3 - Congruent

From the graph, we have the following highlights

Quadrilaterals 2, 3 and 4 are congruentQuadrilateral 1 does not have equal measure with any of the other quadrilaterals.

Hence, the first three statements are not congruent, while the last statement is congruent.

Read more about congruent shapes at:

https://brainly.com/question/24430586

If x=47 , find the measures of angles 1,2 and 3​

Answers

Angle x and 2 are congruent so angle 2 is also 47 degrees.

Angle x and angle 1 are supplementary so angle x and angle 1 adds up to 180 degrees.

180-47=133. Angle 1 is equal to 133.

Angle 1 and angle 3 are congruent as well so angle 3 is also 133 degrees.

DO NOT ANSWER WITH A LINK
The sum of three consecutive integers is 42. Which of the equations could represent this relationship? Select the two correct answers.
x + (x + 1) + (x + 2) = 42
x + (x + 2) + (x + 4) = 42
(x minus 1) + x + (x + 1) = 42
(x minus 2) + x + (x + 2) = 42
x + 2 x + 3 x = 42

Answers

Answer:

x+(x+1)+(x+2)=42

(x minus 1)+x +(x+1)=42

Step-by-step explanation:

to find the smaller number and to find the middle number

I hope this help you

pls help i am in 8th grade k12
What is the equation of the line shown in this graph?

A function graph of a line with two points (-2,2) and (-2,-3) with an x axis of negative five to five and a y axis of negative five to five

Enter your answer in the box.

Answers

Answer:

x = -2

Step-by-step explanation:

Yeah if you have a new 7473

I NEED A 100% ACCURATE ANSWER FOR THIS ASAP NO LINKS !!!
Solve the following: 15+6h=45+8h
1: h= 28
2: h= -30
3: h= 15
4: h= -15

Answers

Step-by-step explanation:

15 + 6h = 45 + 8h

-8h + 6h = 45 - 15

-2h = 30

h = 30/-2

h = -15

hope this answer helps you dear...take care and may u have a great day ahead!

Answer:

4

Step by step explanation:

15+6h=45+8h

15+6h-8h=45

6h-8h=45-15

-2h=45-15

-2h=30

h=-15

Please help!
In the figure below, P is the midpoint of LM, and Q is the midpoint of MN. Use the Midpoint formula to find the location of point P and point Q.

Answers

Answer:

P= (5.5, 8)

Q=(8.5,5)

Step-by-step explanation:

Coordinates of L: (2,7)

Coordinates of M: (9,9)

Coordinates of N: (8,1)

Midpoint formula is: [tex]\left(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}\right)[/tex]

P is the midpoint of LM, so the coordinates of P will be ((2+9)/2,(7+9)/2)

P's coordinates are (5.5, 8)

Q is the midpoint of MN, so the coordinates of Q will be ((9+8)/2,(9+1)/2)

Q's coordinates are (8.5,5)

WHat is the solution of x^2 + x-6 / x-7 < 0

Answers

Answer:

x≤-3 or 2≤x∠7

Step-by-step explanation:

It would be the first answer on the paper

Answer:

A

Step-by-step explanation:

[tex]\frac{x^2+x-6}{x-7} \leq 0\\[/tex]

hence numerator and denominator are of opposite sign.

case1 .

let x²+x-6≥ 0

and x-7<0

x²+x≥6

x²+x+1/4≥6+1/4

(x+1/2)²≥25/4

(x+1/2)²≥(5/2)²

|x+1/2|≥5/2

x+1/2≥5/2

x≥5/2-1/2

x≥2

or

x+1/2≤-5/2

x≤-5/2-1/2

x≤-3

also x-7<0

x<7

combining

x≤-3 or 2≤x<7

case 2.

x²+x-6<0

and x-7≥0

x²+x<6

x²+x+1/4<6+1/4

(x+1/2)²<25/4

|x+1/2|<5/2

so -5/2 <x+1/2<5/2

-5/2-1/2<x<5/2-1/2

-3<x<2

also x-7≥0

so x≥7

combining

we get no vlaue satisfying both the values.

Hence rejected.

Which best describes the value of 8 in 3.458?
Since 8 is in the thousandths place, the value of the digit is 0.008.
Since 8 is in the hundredths place, the value of the digit is 0.08.
O Since 8 is in the thousandths place, the value of the digit is 0.08.
Since 8 is in the hundredths place, the value of the digit is 0.008.

Answers

Answer:

Since 8 is in the thousandths place, the value of the digit is 0.008.

um I hope that's correct.

Now when the spending multiplier is same as the one calculated in Q 4c and if there is a decrease in government purchases by $50,000. Calculate the change in AD. (Show your work)
Will AD increase or decrease?

Answers

Answer:

a. The real GDP increases by $200,000.

a. The real GDP increases by $150,000.

Step-by-step explanation:

a. What is the eventual effect on real GDP if the government increases its purchases of goods and services by $50,000?

Eventual effect on real GDP = Amount of increase in government spending * (1 /(1 - MPC)) = $50,000 * (1 / (1 – 0.75)) = $200,000

Therefore, the real GDP increases by $200,000.

a. What is the eventual effect on real GDP if the government, instead of changing its spending, increases transfers by $50,000?

Eventual effect on real GDP = (Amount of increase in government transfers * (1 /(1 - MPC))) - Amount of increase in government transfers = ($50,000 * (1 / (1 – 0.75))) - $50,000 = $150,000

Therefore, the real GDP increases by $150,000.



HELP SOLVE PLEASEEE

Answers

Answer:

d. -6x + 2 = -15

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