Write an equation of each sentence. Use n to represent the unknown number. You can use the back page for your solution. (2 points each) 11. Six increased by a number is twenty. 12. A number decreased by seven is four. 13. The sum of two consecutive numbers is thirty-one. 14. The sum of twice a number and two is thirteen. 15. One less than a number is eighteen. 16. The square of a number increased by four is twice the number. 17. Twice a number is one-half. 18. The product of a number and its half is eighteen. 19. The average of a number and ninety is seventy. 20. Two more than a number is twelve.

PLEASE HELP Me​

Answers

Answer 1
Answer:11. 6 + n = 2012. n - 7 = 2013. n + n + 1 = 3114. 2n + 2 = 1315. n - 1 = 18 16. n² + 4 = 2x17. 2n = 1/218. n²/2 = 1819. n/2 + 90/2 = 7020. 2 + n = 12

Hoped this helped.

[tex]-BrainaicUser1357-[/tex]

Answer 2

Let the number be x

#11

[tex]\\ \sf\longmapsto x+6=20[/tex]

#12

[tex]\\ \sf\longmapsto x-7=4[/tex]

#13

[tex]\\ \sf\longmapsto x(x+1)=31[/tex]

#14

[tex]\\ \sf\longmapsto 2x+2=13[/tex]

#15

[tex]\\ \sf\longmapsto x-1=18[/tex]

#16

[tex]\\ \sf\longmapsto x^2+4=17[/tex]

#17

[tex]\\ \sf\longmapsto x^2/2=18[/tex]

#18

[tex]\\ \sf\longmapsto x+90/2=70[/tex]


Related Questions

estimate 127600 multipled by 0.93​

Answers

Answer : 115,200

Step - by - step explanation :

sorry if this is wrong !

127,600 --> 128,000

0.93 --> 0.90

128,000 x 0.90 = 115,200

Round 479 to the nearest ten. Enter your answer in the box below.
Answer here
.
SUBMIT

Answers

Answer:

480

we round up because the last number is bigger than 5

Complete the table of values for
1
0
1
1
1
1
1) On the writ, draw the graph of
12
1
0
(0) Use your graph to find
(1)
the value of when x 1.5
(b) the value of x when y6
26
6

Answers

Answer:

can't see the pic properly

9490 divided by 5.explain how you got the answer

Answers

Answer:

The number 9490 is called the numerator or dividend, and the number 5 is called the denominator or divisor.

The quotient of 9490 and 5, the ratio of 9490 and 5, as well as the fraction of 9490 and 5 all mean (almost) the same:

9490 divided by 5, often written as 9490/5.

Read on to find the result of 9490 divided by 5 in decimal notation, along with its properties.

Help help help help math math

Answers

Step-by-step explanation:

Relation

Hope it correct!!!

5. The combined perimeter of a circle and a square is 16. Find the dimensions of the circle and square

that produce a minimum total area.

Answers

The dimensions of the circle and square that produce a minimum total area are 1.12 and 2.24 respectively

Represent the side length of the square with s, and the radius of the circle with r.

So, the perimeter (P) and the area (A) of the shape are:

[tex]P =4s + 2\pi r[/tex]

[tex]A =s^2 + \pi r^2[/tex]

The perimeter is 16. So, we have:

[tex]4s + 2\pi r = 16[/tex]

Divide through by 4

[tex]s + 0.5\pi r = 4[/tex]

Make s the subject

[tex]s = 4 - 0.5\pi r[/tex]

Substitute [tex]s = 4 - 0.5\pi r[/tex] in [tex]A =s^2 + \pi r^2[/tex]

[tex]A = (4 - 0.5\pi r )^2 + \pi r^2[/tex]

Expand

[tex]A = 16 - 4\pi r + 0.25(\pi r)^2 + \pi r^2[/tex]

This gives

[tex]A = 16 - 4\pi r + (0.25\pi^2 + \pi )r^2[/tex]

Differentiate with respect to r

[tex]A' = 0 - 4\pi + 2(0.25\pi^2 + \pi )r[/tex]

[tex]A' = - 4\pi + 2(0.25\pi^2 + \pi )r[/tex]

Set to 0

[tex]- 4\pi + 2(0.25\pi^2 + \pi )r =0[/tex]

Add 4pi to both sides

[tex]2(0.25\pi^2 + \pi )r =4\pi[/tex]

Divide both sides by 2

[tex](0.25\pi^2 + \pi )r =2\pi[/tex]

Make r the subject

[tex]r =\frac{2\pi}{(0.25\pi^2 + \pi )}\\[/tex]

Factor out pi

[tex]r =\frac{2\pi}{\pi(0.25\pi + 1 )}[/tex]

Cancel out the common factors

[tex]r =\frac{2}{0.25\pi + 1 }[/tex]

Express pi as 3.14

[tex]r =\frac{2}{0.25\times 3.14 + 1 }[/tex]

[tex]r =\frac{2}{1.785}[/tex]

Divide

[tex]r =1.12[/tex]

Recall that:

[tex]s = 4 - 0.5\pi r[/tex]

This gives

[tex]s =4 -0.5 \times \pi \times 1.12[/tex]

This gives

[tex]s =4 -0.5 \times 3.14 \times 1.12[/tex]

[tex]s =2.24[/tex]

Hence, the dimensions of the circle and square that produce a minimum total area are 1.12 and 2.24 respectively

Read more about minimum areas at:

https://brainly.com/question/6427280

12 cars in 15 hours how many cars is in 10 hours

Answers

Answer:

8

Step-by-step explanation:

12 cars in 15 hours how many cars is in 10 hours

12 : 15 = x : 10

x = 12 * 10 : 15

x = 8

-------------------

check

12 : 15 = 8 : 10

0.8 = 0.8

the answer is good

If 8 boys are arranged in a row, what is the probability that 3 boys will sit together?

Answers

Answer:

100% if you have 8 boys in a row the change that three boys will sit next to each other is 100%

Hope This Helps!!!

Answer:

i think probably 3/28 ,that 3 boys will sit together

-
Which polynomial has a factor of (x - 5)?
A x² + 4x - 5
B x + 5x + 4
C x² – 2x - 15
D 2x + 11x + 5
-

Answers

Answer:

The correct answer is C

x² - 2x -15

Find the value of x need help

Answers

Answer:

x = 13

Step-by-step explanation:

180-52=10x-2

130=10x

13=x

1. Suppose 750 tickets were sold for a concert with a total revenue of $5300. If adult tickets were $8 and
student tickets were $4.50, how many of each type of ticket were sold?

a) Define your variables.
X=______
y =_______
b) Write the system of equations.
Equation 1:_______
Equation 2:______

c) Solve the system of equations and determine how many of each type of ticket were sold.
ha

Answers

Answer:

x=65

Step-by-step explanation:

y= 23213

To make four cakes, Dena used 6 cups of sugar. Using the same recipe, how much sugar does she need to make one cake?​

Answers

1.5 cups per cup. cups/cake
6 cups/ 4 cakes
= 1.5 cups per cake

Answer:

Step-by-step explanation:

So 4 cakes = 6 sugars, right so try taking it slow and think to yourself, 3=? then take it even slower until you go to 1=0.67 repeated

Consider the following conversation.
Paul: Alsafat telling a lie.
Alsafat: I am telling a lie.
Emman: Paul telling a lie.
Suppose that exactly one of them telling a truth. Who is telling a truth?

Answers

Answer: Emman is telling the truth because no one is saying that he is telling a lie.

Step-by-step explanation:

Minh spent $3.50 on 25 stickers.

How much did each sticker cost?

Answers

Answer:

0.14

Step-by-step explanation:

brainliest please

Each sticker costs 14 cents

Some help please please

Answers

Answer:

[tex]8\sqrt{2}[/tex]

Step-by-step explanation:

To find the length of an isosceles triangle, you know that the angles of the triangle are 45-45-90, so let's use that triangle theorem.

Therefore, the length of the hypotenuse (BD) is [tex]x\sqrt{2}[/tex], and x is equal to 8 (length of BC).

[tex]x\sqrt{2}[/tex]

x=8

Therefore, [tex]8\sqrt{2}[/tex] would be the length of side BD.

Answer:

oh snap i have this question too sorry cant help :(

Step-by-step explanation:

but i can provide with advice bc is the side down and bd is across us this to your advantage

Ahat costs $25. Tax is 8%. How much is the lax on the hot? O $20 $17 $0 20 $2 NEXT QUESTION ASK TORTILLP​

Answers

Answer:

$2

Step-by-step explanation:

To use a percent you must change it to a decimal.

8% is .08

To find 8% of 25, we use multiplication.

.08 × 25

= 2

In case you cannot use a calculator or you want to be very quick about this, or just do a simple check... you can actually reverse the number (money, amount, etc) and the percent.

25% of 8 is not bad for doing mental math. 25% is a quarter, or 1/4 of 8 which again is 2.

Order the following fractions from least to greatest: 11/5, 6/5, 1/5

Answers

Answer: 1/5, 6/5, 11/5.

Step-by-step explanation:

1/5 is the smallest, as it isnt even 1 whole! (5/5)

6/5 = 1 1/5.

11/5 = 2 1/5, so its the greatest

Subtract:
(3x^3– 10x^2+ 13x) – (5x^3+ 4x² – 9x)
A. 8x^3 + 14x^2 - 22x
B. 8x^3 - 6x^2 + 4x
C. 2x^3 - 6x^2 - 4x
D. -2x^3 - 14x^2 + 22x

Answers

Answer:

D

Step-by-step explanation:

(3x³ - 10x² + 13x)  -  (5x³ + 4x² - 9x)

3x³ - 10x² + 13x  - 5x³ - 4x² + 9x  Change all terms after the subtraction sign to

                                                      the opposite sign (definition of Subtraction)

(3x³ - 5x³) + (-10x² - 4x²) + (13x + 9x)    Group like terms together

-2x³ - 14x² + 22x                                    

Write a multiplication equation that represents the question: how many 2/3 are in 9/8?

Answers

how many 2/3 are in 9/8?

or another way to put it will be

how many times does 2/3 go into 9/8?

well, is simply a division.

[tex]\cfrac{9}{8}\div \cfrac{2}{3}\implies \cfrac{9}{8}\cdot \cfrac{3}{2}[/tex]

Find the difference. 2/5(d-10)-2/3(d+6)

Answers

[tex]\dfrac 25(d-10) - \dfrac 23(d+6)\\\\\\=2 \left(\dfrac{d-10}5 - \dfrac{d+6}3 \right)\\\\\\=2\left[\dfrac{3(d-10) - 5(d+6)}{15}\right]\\\\\\=2 \left( \dfrac{3d-30-5d-30}{15} \right)\\\\\\=2\left(\dfrac{-2d-60}{15} \right)\\\\\\=2(-2) \left(\dfrac{d+30}{15} \right)\\\\\\=-4 \left(\dfrac{d+30}{15} \right)\\\\\\=-4\left(\dfrac d{15} +2 \right)\\\\\\=-\dfrac{4d}{15}-8[/tex]

Worth 12 points do it soon pls

Answers

Step-by-step explanation:

9+(-5)=4

-8-4=-12

8-(-4)=12

-9+5=-4

Hope this helps, just go connect the equation to the answer that I put.

RULES

If you have a minus and a minus (- -) it is equal to +

If you have Plus and Minus (- +) it is equal to -

The first one when simplified is 9-5=4

The second one Simplified is -8-4=-12

The third one simplified is 8+4=12

The fourth one simplified is -9+5=-4

I hope this helped and that you got the concept. If you have questions, ask me

Ps. If you mark me branliest it would-be very appreciated

What is the slope

A) 1/3

B) 3

C) 2

Answers

Answer:

3 (B)

Step-by-step explanation:

rise/run

rise=3

run=1

3/1=3

It’s 3,
Because it starts at 1, moves up 3 spaces just give 3.

What is the volume of a cube that has a height of 10 inches? 10 inches

A:600 cubic inches
B:100 cubic inches
C:40 cubic inches
D:1,000 cubis inches​

Answers

Answer:

i think its B.

Thats only i know

Can you solve this? Please ( 15+ points)

Answers

Answer:

112+24x

Step-by-step explanation:

2(16+(10*4)+(x*12))

solve the inner bracket

2(16+40+12x)

solve this bracket

2(56+12x)

solve this now

112+24x

Answer:

[tex]24x+112[/tex]

Step-by-step explanation:

First of all we will start with the brackets inside the equation,

1. [tex]2[16+40+12x][/tex]

Now we can multiply 2 by all the values inside the parentheses

2. [tex]32+80+24x[/tex]

I just wanted to confirm that the big X is a variable?

Fact: Did you know that there are about 4 types of parenthese: ( ) - round brackets, [ ] - square brackets, { } - curly brackets, and < > - angle bracket.

Will give brainliest!! Thank you

Answers

Answer:

All the mentioned can be constructed with the help of piling method. But, for construction of B and D we need a point as well.  

Please give brainliest only need 3 more brainliest before next rank!

Step-by-step explanation:

a) Yes, a cube can be formed by stacking polygons. If we stack squares one upon another, then the resulting 3-D figure would be a cube.

b) Yes, a cone that does not include the point can be made by stacking disc. If we stack discs such that the discs are arranges in descending order then the resultant 3-D figure would be a cone that does not include a point.

c) Yes, a pyramid can be formed by stacking polygons.

If we stack squares such that they are arranged in descending order of their side length and stacked by a point on the top. Then the resultant figure would be a  pyramid that includes a vertex.

f) There are many types of prism. Fro example a rectangular prism can be constructed by simply stacking rectangle polygon on one another.

e) Yes, a cone can be formed by stacking disc.

We need to stack disks arranged in descending order of their radius stacked with a point on the top. The resulting figure would be a cone that includes a point.

f) Yes, a cylinder can be formed by stacking. We need to stack discs of same radius to get a cylinder.

Answer:

B and D

Step-by-step explanation:

HELP ASAP! TYSM IF U DO, WILL GIVE BRAINILEST!

Answers

its d becuase i used math-way

Step-by-step explanation:

b

=

4

Answer:

Option D

Step-by-step explanation:

Given equation:

b - 12 = - 8

Add 12 to both sides:

b - 12 + 12 = - 8 + 12b = 4

Correct graph is D, where point 4 is marked

5. How much would d dollars earn in one year at thē rate of p percent compounded annually?

Answers

Answer:

a

Step-by-step explanation:

a

How are the two triangles congruent? If not congruent, select not
congruent.
1 point
SSS
SAS
ASA
AAS
ОО
Not congruent

Answers

Answer:

SAS

Step-by-step explanation:

there are vertical angles in the middle and the sides are already marked

William has $22 to buy strings for his guitar. Each set of strings costs $5.
How many sets of strings can he buy? Do not include units in your answer.
Answer here
SUBMIT

Answers

Answer:

4

Step-by-step explanation:

4 sets of strings will cost:

4×5=20

He will have $2 left over. Not enough to buy another set.

Or 5x<=22 DIVIDE BOTH SIDES BY 5

x <= 4.4 since he cannot buy .4 sets (this is a fraction of a set) He can only buy 4 sets

help me please please​

Answers

Answer:

17/18

Step-by-step explanation:

To add fractions, you need to have common denominators. (4/9)*(2/2)=8/18.

Now that they have common denominators, you can add 8 and 9 to get 17. So, the answer would be the second one, 17/18.

Answer:

r u just cheating ur way through a whole test lol

Step-by-step explanation:

its B or 17/18

Other Questions
Which term is defined as having more and more people living in and around cities than before?human rightsurbanizationmigrationurban planning Pls help with at least one and explain how u solved it so I can do the rest myself Something is more useful when it is broken what is it ? Read the following Case study and respond accordingly. Remember- The lesson discussed was Humanistic Approach, Reality Therapy and Imposed Discipline. Rima is a nine years old student who has a very strong personality and always tries to force her friends to talk, play and interrupt while the teacher is giving her/his lesson. She disturbs others all the time by acting freely in class. What might best work in fixing Rimas challenging behavior? Explain your answer with reference to the lectures we completed. which two organelles in eukaryotic cells originated from prokaryotes? What feelings and moods do horizontal, vertical, and diagonal lines usually suggest? Can you please help me with number 15 regular patterns of smooth, rounded waves are called Which statement best summarizes the central idea of this passage? in america, great things can be achieved if one plans in advance and works hard. Political struggles are not the only things that create a latino or latina identity. There are many different aspects to a latino identity, including the importance of family. Identity comes from many aspects, including political struggles that inspire how one lives life. Heart, 5 stars, and Brainiest to first right answer!Which climate condition is typically found in the tropics due to the interaction of the atmosphere and hydrosphere?A.Dry with low humidityB.Dry with high humidityC.Wet with high humidityD.Stormy with low humidity what is 9/blank= 4? i really don't know David invests $10,000 in a savings account that pays 3.5% simple interest. If Davidmakes no withdrawals or deposits to the account, how much will be in theaccount after 7 years. Do you agree with the decision your parents make for you? Why or why not? Give one example of a decision your parents made that you didnt agree with. How is Adam Smith both praiseworthy and suspicious of businessmen's ability to serve the public good 2. What was the relationship between Americans and the federal government at the beginning of the GreatDepression? during the light reactions of photosynthesis protons are actively transported: Student Council sponsors weekly dances at their school on Friday nights. The admission price for each person is $4 for Student Council members. Members pay an annual fee of $50 for membership dues. A. Write a function that can be used to determine c, the total cost, for a member to attend n, number of dances a year.B. How much will a member pay if they attend 15 dances during the school year.1. Summarize the given situation in your own words. (What do you notice?)2. Explain: What is the essential information you can use to find the solution?3. Find the Solutions to parts A and B above. Show your thinking in the space below. The mass of a sample of sodium bicarbonate is 2. 1 kilograms (kg). There are 1,000 grams (g) in 1 kg, and 1 Times. 109 nanograms (ng) in 1 g. What is the mass of this sample in ng? 2. 1 Times. 103 ng 2. 1 Times. 106 ng 2. 1 Times. 109 ng 2. 1 Times. 1012 ng. ........thought about it more, I'd have changed the date.1) Had I 2) Have I 3) I had 4) would I have When citing a web page, what item is included that does NOT appear in a print source citation?links to additional informationthe date the material first appeared on the sitethe date you accessed the informationthe name of the page owner