Mathematics College

Choose the proper steps needed to solve the following equation and give the
solution for k:
-5k +2k = 45.
1) subtract 2k, then divide by -5
2) combine like terms, then divide by 3
combine like terms, then divide by -3
4) combine like terms, then add 3

Answers

Answer 1

Answer:

1

Step-by-step explanation:

subtract 2k, then divide by -5

Related Questions

Click on the graph below to create a pentagon with vertices at the following points. (-8,9), (-9,7),(-9.4), (-3,5), (-4,9)​

Answers

Answer:

It is a triangle.

Step-by-step explanation:

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

Plot the given points. The first coordinate is the horizontal distance from the y-axis. The second coordinate is the vertical distance from the x-axis. Positive is right or up. Negative is left or down.

The lengths in cm, of the sides of a triangle are 3x - 5, 2x-1 and x+1
3x - 5
2x - 1
(a) Write down an expression, in terms of x, for the perimeter of the triangle
(2)
The perimeter of the triangle is 31 cm.
(b) Work out the value of x.

Answers

Answer:

a) p = 6x - 5

b) x = 6

Step-by-step explanation:

a) p = a + b + c

p = 3x - 5 + 2x - 1 + x + 1

p = 6x - 5

b) p = 6x - 5 =31

6x - 5 = 31

6x = 36

x = 6

PLEASE CLICK ON THIS IMAGE I NEED HELP

Answers

It seems that each pie costs 4 dollars. That is why for two pies, it’s eight dollars. For four pies it is 16 dollars. And it goes on. If you need anything else let me know.

Answer:

4

Step-by-step explanation:

because

8÷2=4

16÷4=4

24÷6=4

32÷8=4

3
4
5
Lily has 8 dog toys that are red. One third of all her dog toys are red.
How many dog toys does Lily have?
Complete the explanation.
First, draw
circles to show
equal parts.
Next, draw
toys in
circle since
circle represents the number of red toys.
Last, draw
toys in each of the remaining circles. Find the total number of toys.
So, Lily has
dog toys.

Answers

Answer:

She has 24 dog toys

Step-by-step explanation:

8x3=24

write an expression that represents the area of only the red shaded region in terms of x

Answers

Answer:

(9 × 3x+7) - (5 × x+2)

Step-by-step explanation:

Red area

9 × 3x + 7

white area

5 × x+2

The girls' volleyball has 10 seventh grade students and 7 sixth grade students. What is the ratio of sixth grade students to seventh grade students on the team?

10 : 17
7 : 17
10 : 7
7 : 10

Janice babysat 3 hours each night for 8 nights. She earned a total of $192 babysitting. What was her hourly rate?

A) $3 per hour
B) $8 per hour
C) $24 per hour
D) $192 per hour


Answers

Answer:

1) 7:10

2) $8 per hour

Step-by-step explanation:

Question 1

What we know:

- there are 10 seventh grade students

- there are 7 sixth grade students

Therefore, the ratio of sixth-grade students to seventh-grade students is 7:10.

Question 2

What we know:

- Janice babysat 3 hours each night

- Janice babysat for 8 nights

- she earned $192

First, we need to find the total number of hours that she babysat. Because she babysat for 3 hours each night for 8 nights, we can find this by multiplying 3 and 8:

3×8=24

Therefore, Janice babysat for 24 hours in total.

Because she earned a total of $192, divide 192 by 24 to find her hourly rate:

192÷24=8

Therefore, Janice has an hourly rate of $8 per hour.

I hope this helps!

4) If x=5, y= 2 and z = 1, what is the value of 2 + 2y + 10Z

Answers

Answer: 16

Step-by-step explanation: I did the equation, hope this helps :)

Write a polynomial that represents the area of the sqaure

Answers

Answer:

4x² + 28x + 49

Step-by-step explanation:

(x + x + 7)²

(2x+7)(2x+7)

4x² + 28x + 49

The voting method in which each voter votes for one candidate and the candidate receiving the most votes is declared the winner is called the ___ method

Answers

Plurality Method
Every person votes for his/her favorite candidate. The candidate receiving the most votes is declared the winner

Does anybody know what measures a, b, and c would be?

Answers

Answer: A = 28 B = 47 C = 105 in degrees

Step-by-step explanation:

OKAY JUST A DISCLAIMER:

I did Geometry last year and the concepts are basically gone but I think I remember how to do this one

So I think one of the theorems stated that the inner angle is half of the outer arc.

So.. angle a would be 56/2 = 28

Angle b would be 94/2 = 47

Angle C is a vertical angle to the angle in the triangle, so it would be 180-47-28=105

please help, the answer i have picked is just a guess btw​

Answers

Answer:

I D K buy hope you find the right answer

Step-by-step explanation:

Answer:

113.04in²it is the total and correct answer

Brian bought a computer
marked down from $380 to
$133. What is the discount,
as a percentage?
A:70%
B:60%
C:65%
D:75%

Answers

Answer:

Step-by-step explanation:

100(133-380)/380=-65%

So the discount was 65%

armando spent $9.70 at the grocery store. he spent $2.05 on a bag of baby spinach and bought tomatoes at $2.25 per pound. how many pounds of tomatoes did he buy? Write and solve an equivalent equation without decimals. Plz show steps! Thank you :)

Answers

Answer:

4 pounds of tomatoes ;)

Step-by-step explanation:

9.70- 2.05-2.25-2.25-2.25-2.25

or you could do

2.25+2.25+2.25+2.25+2.05

Answer:

4 libras

Step-by-step explanation:

se me traba la laptop y que escribo se traba.

which of the following is divisible by 9?​

Answers

Answer:

If a numbers digits add up till 9

Step-by-step explanation:

A square is 5 inches on each side. A small square, x inches on each side, is cut out from each corner of the original square. Represent the area of the remaining portion of the square in the form of a polynomial function A(x).

Answers

Answer:

A(x)= (5×5)-[4(x×x)]Hope this helps!

Write and solve an equation to find the value of x and the missing angle measures.
1.
2.
6x
(4 + 5x)
30°
(x + 2)
3.

Answers

Answer:

Step-by-step explanation:

1). Since, both the angles are vertically opposite angles,

  Measure of both the angles will be same.

  6x = 30

   x = 5

2). Since, both the angles are the linear pair of angles,

   (4 + 5x)° + (x + 2)° = 180°

    6x + 6 = 180

    6x = 180 - 6

    x = [tex]\frac{174}{6}[/tex]

    x = 29

    Therefore, (4 + 5x)° = 4 + 5(29)

                                     = 149°

    And (x + 2)° = (29 + 2)

                        = 31°

3). Since, both the angles are linear pair of angles,

    5x° + (3x + 12)° = 180°

    8x + 12 = 180

    8x = 180 - 12

    x = [tex]\frac{168}{8}[/tex]

    x = 21

    Therefore, 5x° = 5(21)

                             = 105°

    (3x + 12)° = 3(21) + 12

                    = 75°

The proportion of twins born in a town is p = 0.12. Suppose we randomly select 100 women from this town who give birth in the next year.

Which of the following is the correct calculation and interpretation of the standard deviation of the sampling distribution of p hat ?

Sigma Subscript p hat Baseline = 0.001 In SRSs of size 100, the sample proportion of women in this town giving birth to twins typically varies 0.001 from the true proportion, p = 0.12.
Sigma Subscript p hat Baseline = 0.032 In SRSs of size 100, the sample proportion of women in this town giving birth to twins typically varies 0.032 from the true proportion, p = 0.12.
Sigma Subscript p hat Baseline = 0.035 In SRSs of size 100, the sample proportion of women in this town giving birth to twins typically varies 0.035 from the true proportion, p = 0.12.
Sigma Subscript p hat Baseline = 0.106 In SRSs of size 100, the sample proportion of women in this town giving birth to twins typically varies 0.106 from the true proportion, p = 0.12.

Answers

Answer:

B. Sigma Subscript p hat Baseline = 0.032 In SRSs of size 100, the sample proportion of women in this town giving birth to twins typically varies 0.032 from the true proportion, p = 0.12.

Step-by-step explanation:

took the quiz

The correct calculation and interpretation of the standard deviation of the sampling distribution of p hat is the sample proportion of women in this town giving birth to twins typically varies 0.032 from the true proportion, 0.12.

What is random sample?

Random sample is the way to choose a number or sample in such a manner that each of the sample of the group has an equal probability to be chosen.

The standard deviation of the sampling distribution of p hat is given as,

[tex]\sigma_{ \hat p}=\sqrt\dfrac{p(1-p)}{n}[/tex]

Here, p is the proportion and n is the number of sample.

The proportion of twins born in a town is p = 0.12. Now there is randomly select 100 women from this town who give birth in the next year.

[tex]\sigma_{ \hat p}=\sqrt{\dfrac{0.12(1-0.12)}{100}}\\\sigma_{ \hat p}=\sqrt{0.001056}\\\sigma_{ \hat p}=0.032[/tex]

Thus, the correct calculation and interpretation of the standard deviation of the sampling distribution of p hat is the sample proportion of women in this town giving birth to twins typically varies 0.032 from the true proportion, 0.12.

Learn more about the random sample here;

https://brainly.com/question/17831271

#SPJ2

plz help, Randy is fencing off a semi-circular region in his backyard against a wall. The semi-circular region has a diameter of 24 feet. The fencing will go along the arc only. How much fencing does Randy need?

Answers

Answer:

[tex]Fence = 41.408ft[/tex]

Step-by-step explanation:

Given

[tex]d = 24ft[/tex]

Required

Determine the length of the wall

First, we calculate the circumference (C) of the semi-circle

[tex]C =\pi d[/tex]

[tex]C = 3.142 * 24[/tex]

[tex]C = 75.408[/tex]

The length of the fence is calculated by subtracting the diameter from the circumference:

[tex]Fence = C - d[/tex]

[tex]Fence = 75.408ft - 24ft[/tex]

[tex]Fence = 41.408ft[/tex]

The Ferris wheel at the fair requires riders to be over 48 inches
tall. How tall are all eligible riders?

Answers

Answer:

4ft

Step-by-step explanation:

il 1) You have four-sixths yards of pipe. How many pieces can you cut the pipe into if each piece is one-ninth yard?​

Answers

Answer:

[tex] \frac{4}{6} \div \frac{1}{9} = 6 [/tex]

it's division

Answer:

just answering

Step-by-step explanation:

bc i want point

what is the length of de
A. 2
B. 3
C. 4
D. 5

Answers

Answer:

DE=5

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Michael canned 4,713 quarts of blueberries over the summer. By the end of the year he had used 1/3 of what he had canned. How many quarts of blueberries had he used?

Answers

Answer:

he used 1,571

Step-by-step explanation:

if you divide 4,713 by 3, you get 1,571 and that amount is equal to just 1/3 of the amount.

The table shows the lengths of some wooden boards Matthew finds in his garage.

The table is titled Board Lengths. The table has two columns and four rows. The first column is labeled Board. The second column is labeled Length. Board A, three and one half feet. Board B, forty-one inches. Board C, four feet. Board D, one and twenty-five hundredths yards.

Which board is the shortest?


A

B

C

D help ASAP right now!!!

Answers

Answer:

b is the answer of this question

can you please help me!!!! thank you

Answers

Answer:

V = J = 92

Step-by-step explanation:

The angles are the same on both shapes.

Plz helpp!!! Very crucial!!!

Answers

1, 4, and 6. Have an amazing day/ night! And an amazing weekend.

I need help ASAP will mark you the brainliest

Answers

Answer:

2

Step-by-step explanation:

Find the area of a rectangular field , if the length of the field is 80m and breadth is 45m

Answers

Answer:

3600m^2

Step-by-step explanation:

Area = length x width

Area = 80m x 45m

Area = 3600m^2

Answer:

3600m^2

Step-by-step explanation:

Area= length x width

A=80m x 45m

Area = 3600m^2

hope this helps ^^ (i wasn't sure what you meant by breadth tho)

Find the x coordinate of the vertex of the parabola sketched in the figure below ?


PLEASE HELP!

Answers

Answer:

Step-by-step explanation:

x-coordinate of vertex is 4

Help plzzz I need answer ASAP

Answers

4

Hope it’s right
Best luck with your studying
3/7, to double check multiply 7x3/7=3 if we started at 3 which I believe we did the above would be wrong the answer is 7/3 to double check we can take 7/3x3=7. So I believe the answer is 7/3. Hope it helps

Jimmy ate 1/3 of his sandwich at lunch. He ate another 2/3 of the sandwich at dinner. How much of the sandwich did jimmy eat in all.

Answers

Answer:

Step-by-step explanation:

1/3+2/3=3/3=1

So he ate the whole sandwich.

Answer:

He ate the entire sandwich.

Step-by-step explanation:

1/3 + 2/3 = 1

Mark me as brainliest pls.

Other Questions
Premed students are often traumatized by studying for their MCAT exam, which historically was always taken at the end of their Junior year in college. Now, many medical schools desire a meaningful gap year between completion of an undergrad degree and entrance to medical school so that incoming students have some sort of life-time experience either working, doing research, charity outreach, or traveling during that time. As a result, modern pre-med students often wait to study for their MCAT until after they graduate without realizing that it means they will end up taking two gap years, not one. Students who complete a basics genetic course should be confident with their knowledge about DNA, RNA, and proteins, along with how to solve basic inheritance problems, which will help them on their MCAT exams. Introductory Genetics helps to reinforce concepts taught fleetingly in Introductory Biology.1. 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What do you think that quote means? !!!!!!!!__________ cultures arecultures are generally associated with being extraverted and assertive, while _________generally associated with being agreeable and cooperative.!!!!!!!!A. Individualist ... collectivistB. Collectivist ... individualistC. Eastern... WesternD. Western ... Eastern Calculate the value of the following expression. Express your answer either as an improper fraction or a decimal. (-8) x (2/3) A cardiologist performs which of these duties?Select all that apply.catheterizationsinserts stentsperforms special testsprepares patients for surgery Which of the following best describes how much precipitation and evaporation occurs over the ocean? A small amount of the evaporation and precipitation Most of the evaporation and precipitation Most of the evaporation but a small amount of the precipitation A small amount of the evaporation and most of the precipitation Is mammalian a parasite ?