Solve 7k÷3=21 Math Problem

Answers

Answer 1
Do you mean 7000? Or k as a variable?
Answer 2

Answer:

k = 9

Step-by-step explanation:

do you need an explantion?


Related Questions

round off 174 to the nearest hundred​

Answers

Answer: 200

Step-by-step explanation:

174 rounded to the nearest hundred is:

200

When rounding to the nearest hundred, like we did with 174 above, we use the following rules:

A) We round the number up to the nearest hundred if the last two digits in the number are 50 or above.

B) We round the number down to the nearest hundred if the last two digits in the number are 49 or below.

C) If the last two digits are 00, then we do not have to do any rounding, because it is already to the hundred.

pls mark brainliest!

Answer:

200

Step-by-step explanation:

Since I helped you can you help me? Go to my most recent question and try to answer it plzzz

A woman can bicycle 25 miles in the same time as it takes her to walk 5 miles she can ride 10 mph faster than she can walk how fast can she walk?

Answers

Answer:

The woman walks at 2.5 mph.

Bonus: she rides her bicycle at 12.5 mph.

Step-by-step explanation:

We're told that she can bicycle 25 miles in the time takes her to walk 5.  That means that on a bicycle, she moves 25 ÷ 5, or 5 times faster on a bicycle than when she runs.

We're also told that she can ride at 10 mph faster than she can walk.

That gives us two relationships to describe.  If we call her speed on the bicycle "b", and her speed on foot "w", then we know:

b = 5w

and

b = w + 10

Since both of those describe b, we can simply equate them.  Stating the obvious:

b = b

therefore:

5w = w + 10

We can then simplify:

5w = w + 10

4w = 10

w = 2.5

So she walks at 2.5 miles per hour.

We can test that answer too.  Let's compare to the first statement, her bicycling 25 miles in the time it takes to walk five miles.

Walking 2.5 miles per hour means she'd take two hours to walk five miles.

We also know that she can ride 10mph faster, so she rides at 12.5 mph.  two times that is 25, so she would indeed cover 25 miles on her bicycle in the same time that she walks five.

what is 30 x 45 x 34 x89

Answers

Answer:

Step-by-step explanation:

9+3+x-y; use x=6, and y=2

Answers

Answer:

If x=6 & y=2 then 9+3+x-y wil be

9+3+6-2

=12+6-3

=18-3

=15

Answer:

Given, x=6 and y=2

so the expression we have 9+3+x-y will become,

9+3+6-2 !

and by adding 9 & 3 we will get,

=12+6-3

Now adding 12 & 6 we get,

=18-3

now by subtracting 3 from 18 we get,

=15

Jerry plans to begin saving money for a trip by putting $1 in a savings account the first month and then adding enough to double the amount in the account each following month. 1 I a. After he finishes contributing to the account, he will withdraw $500 to make a down payment on the trip. Create a function to show how much money will be in the account if he finishes contributing to the account after t months.​

Answers

Answer:

A=2*(t-1)-500

Step-by-step explanation:

I did it on study island.

Function representing the amount of money as per given condition in the account after [tex]t[/tex] months is equals to [tex]A= 2^{t-1} -500[/tex].

What is function?

" Function is defined as relation between variables is such that for each input value there exist one and only one output."

According to the question,

Given,

Amount in the account

Frist month [tex]= \$1[/tex]

                   [tex]= 2^{1-1}[/tex]

As per given condition,

second month [tex]= \$2[/tex]

                        [tex]= 2^{2-1}[/tex]

Third month  [tex]= \$4[/tex]

                     [tex]= 2^{3-1}[/tex]

.........

Amount in the account in [tex]'t'[/tex] months [tex]= 2^{t-1}[/tex]

Jerry withdraw  [tex]\$500[/tex] to make a down payment on the trip.

[tex]'A'[/tex] represents the total amount left in the account

Required function as per given condition,

[tex]A = 2^{t-1} -500[/tex]

Hence, function representing the amount of money as per given condition in the account after [tex]t[/tex] months is equals to [tex]A= 2^{t-1} -500[/tex].

Learn more about function here

brainly.com/question/12431044

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Ramik is buying a house for $223,000 that requires a 5 percent down payment. How
much money will he need for the down payment?

Answers

Answer:

$11,150

Step-by-step explanation:

$223,000 x .05 = 11,150

$11,150 dollars trust

2.5d + 7.25 = 1 + 3.75d solve for d

Answers

Answer:

5

Step-by-step explanation:

Subtract 1 from both sides. The equation becomes 2.5d + 6.25 = 3.75d

Subtract 2.5d from both sides. The equation becomes 6.25 = 1.25d

Divide 1.25 from both sides. You get 5 = d

For the following report about a statistical​ study, identify the items below: to find the​ public's views on obesity​, researchers waited outside a fast food restaurant they had randomly selected from a list of such establishments. they stopped every 25th person who came out of the restaurant and asked whether he or she thought obesity was a serious problem.
1. The population:____.
a. all people except those who work at fast food restaurantfast food restaurants.
b. people.
c. every 25th person leaving the restaurant.
d. all people that go to fast food restaurantfast food restaurants.
2. The population parameter of interest:_____.
a. proportion who think obesity is not a serious problem.
b. proportion of people who think obesity is a serious problem.
c. proportion of people who answered the survey.
d. proportion of people who did not answer the survey.
​3. The sampling frame:_____.
a. all people except those who work at fast food restaurantfast food restaurants.
b. people who think obesity is a problem.
c. every 25th person leaving the restaurant.
d. restaurant customers.
​4. The sample:____.
a. people.
b. every person leaving the restaurant.
c. every 25th person leaving the restaurant.
d. all people except those who work at fast food restaurantfast food restaurants.
5. The sampling​ method, including whether or not randomization was employed:_____.
a. questionnaire​ (non-random).
b. not​ specified, non-random.
c. not​ specified, but at least​ "random".
d. systematic sampling.
​6. Any potential sources of bias you can detect and any problems you see in generalizing to the population of interest:
A. Response bias is possible. The study is conducted in such a way as to achieve a desired response that may be different from the population in general.
B. Non-response bias is possible. Since some people leaving the restaurant may not respond to the​interview, the study may misrepresent the general population.
C. Undercoverage bias is possible. Since those interviewed just left a fast food restaurant commafast food restaurant, their opinions about obesity may differ from the population in general.
D. There is no indication of bias.

Answers

Answer:

Step-by-step explanation:

From the short passage given in the question, we are fill in the gaps with the options provided in each question. Below shows the correctly selected answer after thoroughly going through the passage.

1

b. people

2

[tex]\mathbf{b. \ proportion \ of \ people \ who \ think \ obesity \ i s \ a \ serious \ problem.}[/tex]

3

d. restaurant customers.

4

c. every 25th person leaving the restaurant.

5

d. systematic sampling.

6

C. Undercoverage bias is possible. Since those interviewed just left a fast-food restaurant, fast food restaurant, their opinions about obesity may differ from the population in general.

Determine whether each pair of polygons is similar.

Answers

Answer:

yes

Step-by-step explanation:

Cuanto es 1+2:
pOrFa NoSe ​

Answers

Answer:

3

Step-by-step explanation:

es hora de comer

If f(x) = 2^x and g(x) = 10x + 1, for which of the following values of x will g(x) be greater than f(x)? Select all correct answers.


A. x = -1

B. x = 0

C. x = 1

D. x = 4

E. x =10

Answers

Answer:

X=4

Step-by-step explanation:

.....................................

For f(x) = x+6 and g(x) = 2x + 3, find the following
a. (fog)(x)
b. (g of)(x)
c. (fog)(2)

Answers

Answer:

[tex](f o g)(x) = 2x + 9[/tex]

[tex](g o f)(x) = 2x + 15[/tex]

[tex](f o g)(2) = 11[/tex]

Step-by-step explanation:

Given

[tex]f(x) = x+6[/tex]

[tex]g(x) = 2x + 3[/tex]

Solving (a): (f o g)(x)

In functions:

[tex](f o g)(x) = f(g(x))[/tex]

Solving for f(g(x))

[tex]f(x) = x+6[/tex]

[tex]f(g(x)) = 2x + 3 + 6[/tex]

[tex]f(g(x)) = 2x + 9[/tex]

So:

[tex](f o g)(x) = 2x + 9[/tex]

Solving (a): (g o f)(x)

In functions:

[tex](g o f)(x) = g(f(x))[/tex]

Solving for g(f(x))

[tex]g(x) = 2x + 3[/tex]

[tex]g(f(x)) = 2(x+6)+3[/tex]

Open bracket

[tex]g(f(x)) = 2x+12+3[/tex]

[tex]g(f(x)) = 2x+15[/tex]

So:

[tex](g o f)(x) = 2x + 15[/tex]

Solving (c): (f o g)(2)

In (a):

[tex](f o g)(x) = 2x + 9[/tex]

Substitute 2 for x

[tex](f o g)(2) = 2*2 + 9[/tex]

[tex](f o g)(2) = 4 + 9[/tex]

[tex](f o g)(2) = 11[/tex]

The Sparkle Farm grows both corn and wheat, among other crops. The cost of cultivating an acre of corn and an acre of wheat is $42 and $30, respectively. The farm has a total of $18,564 in order to cultivate these two crops, however, the farm must grow three times as many acres of corn as wheat in order to qualify forspecific government subsidies. How many acres of wheat must be cultivated

Answers

Answer: 119

Step-by-step explanation:

Let the acre of wheat to be cultivated be x.

Since the farm must grow three times as many acres of corn as wheat, therefore, corn = 3x

The information given can be used to form a equation as:

42(3x) + 30x = 18564

126x + 30x = 18564

156x = 18564

x = 18564/156

x = 119 acres of wheat

x+3y=0. Solve for y, then graph the equation

Answers

Answer:

Step-by-step explanation:

Subtract x on both sides

[tex]3y=-x[/tex]

Divide both sides by 3

[tex]y=-\frac{1}{3} x[/tex]

To find the y-intercept, let x = 0

y = 0, therefore the function crosses the y-axis at the origin.

To find the x-intercept, let y = 0

x = 0, therefore the function crosses the x-axis at the origin too.

The slope of the function is -1/3, from the origin, go down 1 and right 3

calculate the area of the regular
Pentagon below 11.8 and 8.1

A:164.025
B:238.95
C:351.78
D:477.9​

Answers

Answer:

we cant see the numbers in the picture

2.25 divided by 5.58

Answers

Answer:

0.4032258

Step-by-step explanation:

What is
in exponential form?
2
Xy
2
xy
10
xay
xy
O
XY
5
xy

Answers

Answer: a

Step-by-step explanation:

Answer:

An x-y axis, also known as a cartesian coordinate system or a coordinate plane, is a two-dimensional plane of points defined uniquely by a pair of coordinates. ... The horizontal line, then, is known as the x axis and measures the distance left or right from the vertical line.

Step-by-step explanation:

The width of the rectangle is 20% of its length. What is the area of the rectangle?


it's 60 ft btw​

Answers

Answer:it is 60

Step-by-step explanation:

The ingredients for your braised ribs cost $11.32. You sell it for $20. What is
your contribution margin?

Answers

Answer:

.03472

Step-by-step explanation:

take sell price $20. subtract cost of 11.32 which equals 8.68. then divide 8.68 by the sell price $20

The formula for contribution margin is the sales price of a product minus its variable costs. In other words, calculating the contribution margin determines the sales amount left over after adjusting for the variable costs of selling additional products.

Based on the cost of ingredients and the amount the braised ribs are sold for, your contribution margin is $8.68.

The Contribution margin the difference between the variable costs of a venture and its selling price:

= Selling price - Variable cost

The selling cost is $20 and the variable costs are $11.32.

Contribution margin is therefore:

= 20 - 11.32

= $8.68

In conclusion, your contribution margin is $8.68.

Find out more at https://brainly.com/question/7986902.

Can someone help me with some of these problems? ;-; i will mark brainliest!!

Answers

4. 4p
5. 20p
6. 5p
7. 6p
i'm not sure about the rest sorry
1) 4u (coefficient is 4)
2) 2v + 3 (coefficient is 2)
3) 6w + 8 (coefficient is 6)

8) p

15) 7x + 11
16) 8x + 2
17) 5 + 3w
18) 6 + 19u

i hope these are correct (^^)
i didn't answer the ones alr answered

Simplify 2 + 3[4 + (7 – 3) – 23]

Answers

Answer:

27

Step-by-step explanation:

Hope this Helps! :)

Answer:

-43

Step-by-step explanation:

Help me with this please

Answers

Step-by-step explanation:

5x - 5° = 40° ( being vertically opposite angles)

5x = 40° + 5°

5x = 45°

x = 45°/ 5

x = 9°

Now

< 1 = 5 * 9° - 5 = 45° - 5° = 40°

Hope it will help :)

A store discounted a the new iPhone by 10%. If the original price was $630, how much
was the discount? (How much was taken off the original price?)

Answers

Answer:

63

Step-by-step explanation:

630 x .1

Subtract. Write your answer in simplest form.

5 3/4 - 2 11/12

Answers

Answer:

Convert the mixed numbers to improper fractions, then find the LCD and combine.

Exact Form:

17

6

Decimal Form:

2.8

¯

3

Mixed Number Form:

2

5

6

Step-by-step explanation:

Answer:

2 5/6 is your answer

Step-by-step explanation:

5 3/4 - 2 11/12

23/4-35/12

(23×3-35)/12

34/12

2 5/6

is each statement true or false. if false make correct statement
A.1/2=2/4
B.1/4=3/8
c.2/3=3/6
d.4/8=1/3
e.6/12=1/2​

Answers

Answer:

Look below

Step-by-step explanation:

A is TRUE

B is FALSE : 1/4 = 2/8

C is FALSE : 2/3 = 4/6

D is FALSE : 4/8 = 1/2

E is TRUE

Hope this helps :)

Using triangle RST, which side is the hypotenuse

Answers

Answer:

Side RT

Step-by-step explanation:

The hypotenuse is the longest side on a right angle triangle, making it the side RT.

Si se tienen 150 rosas y 90 margaritas, ¿de qué tamaño se deberá hacer arreglos de modo que no sobren flores?

Answers

I would help but I don’t know how to read it hope someone helps u out

What is the domain of the function

Answers

Hope this will help you have a nice day

help me please if you can

Answers

Answer: XYVW

Step-by-step explanation:

Answer:

hmm maybe try the statement XYVW

A _____ is not a required report or an accounting record, it is an optional working paper used to prepare a company's unadjusted trial balance, adjusting entries, adjusted trial balance, and financial statements.

Answers

An audit of the financial statements

Answer:

Worksheet

Step-by-step explanation:

A Worksheet is not a required report or an accounting record, it is an optional working paper used to prepare a company's unadjusted trial balance, adjusting entries, adjusted trial balance, and financial statements.

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