The difference between nine and a number is seven. Find a number.

Answers

Answer 1

hi <3

call your unknown variable 'x' and form an equation

9 - x = 7

subtract 9 from both sides

-x = -2

divide both sides by -1 to get your answer of:

x = 2

hope this helps :)

Answer 2

9-x=7

9-2=7

x=2

I hope this helps


Related Questions

The assositive property works with expressions that use

Answers

Answer:

lol

Step-by-step explanation:

Answer:

The associative property can be used with multiplication and addition.

Examples:

2+(3+2) -> (2+3)+2 (Associative Addition)

2*(3*2) -> (2*3)*2 (Associative Mult.)

It does not work with division or subtraction.

2-(3-2) does not equal (2-3)-2

what is 10,000 written as a power with a base of 10

Answers

Answer:

10⁴ is 10,000 written as a power with a base of 10

Answer:

10^3

Step-by-step explanation:

10 has a decimal point at the end of it. You have to jump 3 places to get 10,000. So, the answer would be 10 to the third power, ,or 10^3

Plz help I am very confused I need help now plz

Answers

Answer:

so the second one

4 * (-9) * (-3) * (-1)

Step-by-step explanation:

-2 * (-7) * 12 * 4 = positive

4 * (-9) * (-3) * (-1) = negative

-6 * (-7) * (-8) * 0 = positive

-3 * (-2) * (-4) * (-7) = positive

negative times negative = positive

8a-4(-5a-2)=12a solve please!!!

Answers

Answer:

A=-1/2

If you search it up, it will show you all the steps

Which one is smaller 5/12 or 5/11?

Answers

By the decimal or just the fraction that is shown???

Hi! I'm happy to help!

Fractions are wholes that are split up. When you split the whole into more pieces, the pieces are smaller.

Due to the fact that 5/12 is split into more pieces than 5/11, and they have the same amount of pieces, 5/11 would be larger because of bigger pieces.

5/11 is bigger because it has bigger pieces.

I hope this was helpful, keep learning! :D

A small fly weighs approximately 2.2 • 10^-3 gram and an average sized gnat weighs approximately 9•10^-4
1. find the sum of the weights of the two insects
2. How much heavier is the fly than the gnat?

Answers

Dhdjsksxksjaa jsjssisjdbi shdjdkswbkdjaja

List all info given by the marks on the diagram.

Answers

Honestly I tried looking it up to get atleast something, but my best answer would have to be B.

Take this answer with a grain of salt, a lot of it

Add 6 5/6 + ( -6 1/5 )

Answers

Answer:

0.63

Step-by-step explanation:

0.63 or 19/30

The answer

A researcher sends out a survey questionnaire to 200,000 people living in California, asking them to report how satisfied they are with their local political representatives. Of the 30,000 people who respond, 40% report being satisfied. Would it be appropriate to conclude that approximately 40% of the entire population of California is satisfied? Group of answer choices yes, as long as the 200,000 people were randomly sampled from the larger population of Californians Yes, regardless of sampling technique Probably not, people who respond to the survey may be different than people who do not respond to the survey

Answers

Answer:

I would say the last one.

Step-by-step explanation:

Political views are often reflected on every aspect of life, including whether or not the respond to a survey.

Awnserssss plsssssssssssssssssssssssss 18 points

Answers

Answer:

10. f'(x) = (x/14) + (14/9)

11. f'(x) = - x + 2

12. f'(x) = 2x - 8

Step-by-step explanation:

The step to solving inverse is a simple trick. You must invert x and y.

For (10.) let f(x) = y

then y = 9x - 14

x = 9y - 14 (this is inverting x and y)

solving for y: x + 14 = 9y

therefore : y = (x/14) + (14/9)

You can do this for the others as well and using simple "solve for x" methods, you can solve for y which is f'(x).

Two bacteria are in a dish. The number bacteria triples every hour following this pattern find the number of bacteria in the dish after 10 hours and after n hours 

Answers

Answer:

59051

Step-by-step explanation:

Answer:

x=118,095

Step-by-step explanation:

6 = 2[tex]e^{k*1}[/tex]

3 =  [tex]e^{k }[/tex]

ln(3) = k ln(e)

k = ln(3)

k = 1.09861

[tex]x = 2e^{1.09861*10}[/tex]

x = 2e^{10.9861}

[tex]x=2e^{10.9861}\quad \left[/tex]

x=118,095

SOMEONE PLEASE HELP I'LL GIVE YOU 50 POINTS :)

Answers

Choice 1
Choice 1 and 3 shows parallel, choice 2 and 4 shows perpendicular. So cross out choices 2 and 4. We’re left with choices 1 and 3. I would go with choice 1 since choice 3 shows RAY A is parallel to RAY B, which isn’t true, they’re not parallel.

Answer:a because when u start off with a parrell line u have 2 start with the a moves 2 b

Step-by-step explanation:

Can someone please help me with this question

Answers

Answer:

D: {-1, 0, 1, 4}; R: {-6, 3, 5, 7}D: {-1, 2, 3}; R: {3, 5, 7}D: {-2, -1, 0, 1}; R: {0, 1, 4}

Step-by-step explanation:

For relations expressed as (input, output) or (x, y) pairs, the domain is the list of inputs, or x-values. The range is the list of outputs, or y-values. Yes, it is that simple. (We often like to arrange the lists in increasing order.)

__

1. Domain: {-1, 0, 1, 4}

  Range: {-6, 3, 5, 7}

__

2. Domain: {-1, 2, 3}

  Range: {3, 5, 7}

__

3. Domain: {-2, -1, 0, 1}

  Range: {0, 1, 4}

Explain how you know that the sums of 12.6,3.1 and 5.4 is greater than 20

Answers

Answer:

2.6+3.1+5.4 =21.1

if you have 20

subtract 21.1-20

then you have 1.1

since the difference is 1.1 then we say

21.1>20


Which of the following is the best measure central tendency for a quantitative data with extreme values? A. All of those
b. Median
c. Mode
d. Mean

Answers

Answer:

in this question, the mean would be the best measure for central tendency....

Step-by-step explanation:

because it is the measure that includes all the values in the data set for its calculation, and any change in any of the scores will affect the value of the mean. This is not the case with the median or mode.

So in conclusion your answer will be D.mean

Order the numbers from least to
greatest.
1.5, 1.27, 1.4, 1.05 , 1.07 , 1.44

Answers

Answer:

Step-by-step explanation:

1.5, 1.44, 1.4, 1.27, 1.07, 1.05

I think this is the answer

Miranda needs to buy a bottle of honey. She notices that she can pay $4 for a
12 oz bottle, or she can pay $6 for a 24 oz bottle. Which bottle is the better buy?
Hint: Find a unit rate (ounces for each dollar).


Answers

Answer:

The better one is $6 for 24 oz bottle

Step-by-step explanation:

If it cost 4 dollars for a 12 oz bottle and that would cost 1 dollar per 3 oz but for the 6 dollar for a 24 oz bottle it would be 1 dollar per 4 oz so 6 dollars for a 24 oz bottle is better!

A bicycle is traveling at 16 miles per hour.
How many feet will it cover in 55 seconds?
Round your answer to the nearest tenth of a foot.

Answers

Answer:

1,290.7ft

Step-by-step explanation:

d = rate x time

d = 16mi/hr  x 1hr/3600s  x 55s  x 5280ft/mi

d = 1290.7ft     (cancel mi, hr, s)

What is the equation of the quadratic function with a vertex at (2,–25) and an x-intercept at (7,0)?

Answers

Let start with some basic theory of quadratics

If  f(x)=ax2+bx+c  a,b,c ∈R  a≠0    f(x)=ax2+bx+c  a,b,c ∈R  a≠0  has   2    2   roots   r1    r1  and   r2    r2  than it can take the form f(x)=a(x−r1)(x−r2).f(x)=a(x−r1)(x−r2).

The maximum or minimum value of  f(x)    f(x)   is   M=−(b2–4ac)4a  M=−(b2–4ac)4a

If   a>0    a>0  then  M    M  is the minimum value and if   a<0    a<0   then   M    M  is the maximum value.

  

Lets go now to the question

Since  2    2  and   7    7  are the roots our function will be  f(x)=a(x−2)(x−7),  a∈R  f(x)=a(x−2)(x−7),  a∈R

so   f(x)=a(x2

Tina is saving to buy a notebook computer. She has two options. The first option is to put $500 away initially and save $30 every month. The second option is to put $300 away initially and save $50 every month. After how many months would Tina save the same amount using either option? How much would she save with either option?

Answers

Answer:

10 months. Each plan will save 800 dollars.

Step-by-step explanation:

500 + 30x = y

300 + 50x = y

You want the months to give the same amount of money. The x has to be the same for both

500 + 30x = 300 + 50x        Subtract 300 from both sides

500 - 300 + 30x = 50x         Combine

200 + 30x = 50x                   Subtract 30x from both sides

200 = 50x - 30x                    Combine

200 = 20x                              Divide by 20

x = 10

So in 10 months time the amounts will be the same. How much will there be?

500 + 30*10 = 500 + 300 = 800

300 + 50*10 = 300 + 500 = 800

10 months is the answer

Please help again, sorry for asking…

Answers

[tex]\text{BC}=6\text{x}+4\\\\\text{AC}=52\\\\\text{AB}=4\text{x}+8\\\\\text{AB}+\text{BC}=\text{AC}\\\\4\text{x}+8+6\text{x}+4=52\\\\10\text{x}+12=52 \ \ /-12\\\\10\text{x}=40 \ \ /:10\\\\\text{x}=4\\\\\text{BC}=6\cdot4+4=24+4=\boxed{28}[/tex]

A tank is full of water. Find the work W required to pump the water out of the spout. (Use 9.8 m/s2 for g. Use 1000 kg/m3as the weight density of water.)
(A water tank shaped like a triangular prism is given. The base of the prism is at the top and a spout is located at the top of the tank. The dimensions of the tank are 9 meters long, 4 meters wide, and 4 meters deep. The spout is 3 meters long.)

Answers

Answer:

W = 1.06 MJ

Step-by-step explanation:

- We will use differential calculus to solve this problem.

- Make a differential volume of water in the tank with thickness dx. We see as we traverse up or down the differential volume of water the side length is always constant, hence, its always 8.

- As for the width of the part w we see that it varies as we move up and down the differential element. We will draw a rectangle whose base axis is x and vertical axis is y. we will find the equation of the slant line that comes out to be y = 0.5*x. And the width spans towards both of the sides its going to be 2*y = x.

PLZZZZZZZZZZZZZZZZZZZZ HELP

Answers

Answer:

1/20

do you need explanation?

The answer to your question is 1 over 20

Which square root is between 4 and 5?
A. √ 10
B. √ 14
C. √24
D. √ 32

Answers

the answer would be D.
The answer is C.

To answer this, square both 4 and 5.

4^2 = 16
5^2 = 25

So the number you’re looking for under a square root needs to be between 16 and 25. 24 is the only number that fits the bill.

The answer is C.

Ricky, Nathan, and Henry collect comic books. Ricky owns twice as many comic books as Nathan. Henry owns as many comic book
Ricky. If Nathan owns 129 comic books, how many does Henry own

Answers

Answer:

258 i think

Step-by-step explanation:

Figure A maps to figure B with a scale factor of point 8

Answers

Answer:

Please you didn't provide the coordinates of figure A and figure B, only the scale factor. If you provide the coordinates,I will be able to solve it.

Thank you.

Enter your answer and show all the steps you use to solve this problem in the space provided.

6×5+3×8
Show all steps for full credit.

Answers

Step-by-step explanation:

6×5+3×8( apply bodmas ) brackets , of division, multiple , addition , substraction ,( you start with multiplication)

30+24

54

Could someone please answer and explain step by step?

Answers

[tex]\\ \sf\longmapsto 4\left(\dfrac{7}{8}\right)+7\left(\dfrac{3}{4}+\dfrac{1}{8}\right)-10[/tex]

[tex]\\ \sf\longmapsto \dfrac{4(7)}{8}+7\left(\dfrac{6+1}{8}\right)-10[/tex]

[tex]\\ \sf\longmapsto \dfrac{28}{8}+7\times \dfrac{7}{8}-10[/tex]

[tex]\\ \sf\longmapsto \dfrac{28}{8}+\dfrac{49}{8}-10[/tex]

[tex]\\ \sf\longmapsto \dfrac{28+49-80}{8}[/tex]

[tex]\\ \sf\longmapsto \dfrac{78-80}{8}[/tex]

[tex]\\ \sf\longmapsto \dfrac{-2}{80}[/tex]

[tex]\\ \sf\longmapsto \dfrac{-1}{40}[/tex]

5 3/4 + 3 1/2






eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

37/4 is the answer

Given the formula:
A = Pe^r.t
Using your scientific calculator, find the money accumulated if you invested $65,000 at 7.3% interest for 10 years compounded continuously.
a. $134,880.24.
b. $96,219,495.29.
c. $69,922.48.
d. None of the above.

Answers

9514 1404 393

Answer:

  a.  $134,880.24

Step-by-step explanation:

Put the numbers into the formula and do the arithmetic.

  A = $65,000×e^(0.073×10) ≈ $134,880.24

_____

Additional comment

The doubling time for continuously compounded interest is 69.3 years divided by the interest rate in %. Here, that is 69.3/7.3 = 9.49 years. That means an investment of 10 years will be slightly more than double the original amount. 2×65,000 = 130,000, so choice A is in the right ballpark. The other numerical choices are not.

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