The difference of twice a number and 9.

Answers

Answer 1

Answer:

2(9-x)

Step-by-step explanation:

Answer 2

Answer:

2n - 9

Step-by-step explanation:

Twice a number is referring to 2 times n or just 2n. To find the difference you would subtract 2n and 9, 2n - 9


Related Questions

I accidentally fell asleep in math, I just need yes and no's please help me out!

Answers

Answer:

No, yes, yes, yes, no, no, yes, no, yes, no, no, yes

Step-by-step explanation:

Explanation is in the comments by the way.

Which graph shows a function where f(2)= 4?

idk i guessed and got it right :)

Answers

Answer:

The 4th graph.

Step-by-step explanation:

Answer:

The first one

Step-by-step explanation:

f(2)=4 means when x=2. F(x) or you may call it y, equals 4, so find the one that when x=2, y=4, then its your answer.

Based on the equation 6x + 2y = 30, what is the missing value in the table?

x
y
?
0
3
5
15
30

Answers

Answer:

5

Step-by-step explanation:

Answer:

the answer is b on edge

Step-by-step explanation:

ok

Identifying the domain and range of the relation.

Answers

Answer:

1. The domain is (-2, -1, 0, 1) the rage is (4,2,0,2) 2. It is a function

Step-by-step explanation:

The domain in a pair is always the first number. The range is always the second number in the ordered pair.

Answer:

Domain: {−2,−1,0,1}

Range: {0,2,4}

Step-by-step explanation:

The domain is all the x-coordinates, but NEEDS TO BE ORDERED, which are {−2,−1,0,1} and you also need to include the curly brackets { }.

The range is all the y-coordinates and also NEEDS TO BE ORDERED, which are {0,2,4} and you also still need to include those curly brackets { }.

Hope this helps and answers your question! :)

Janet collected 4 times as many bags of cans as her friend. If her friend collected 0.87 of a bag,
how much did Janet collect?

Answers

Answer:

Janet collected 3.48 bags of cans

Step-by-step explanation:

The answer is 3.48 because 0.87 multiplied by 4 is 3.48

Answer:

.384

hope this helps!

Twenty people each had 36 carrots. How many carrots are there altogether?

Answers

You know that there are 25 people and each person had 36 carrots. To find how many carrots everyone has in total, you have to multiply 25 by 36.

25 times 36 is 900.

There are 900 carrots altogether.

Which of these triangle pairs can be mapped to each other using a single reflection?

Triangles F E G and F G L are congruent. Triangle F E G is reflected across line F G to form triangle F G L.
Triangles F E G and G L M are congruent. Triangle E F G is rotated about point G to form triangle G L M.
Triangles F E G and L M N are congruent. Triangle F E G is shifted down and to the right to form triangle L M N.
Triangles L M N and E F G are congruent. Triangle F E G is reflected across a line to form triangle L M N. Triangle L M N is also slightly higher and to the right of triangle E F G.

Answers

Answer:

the first answer (A)

Step-by-step explanation:

took it on edge 2020 (:

Answer:

A

Step-by-step explanation:

I took it on edg 2020 and got it wrong so I thought I would help you

what is the sum of the exterior angles of a decagon

Answers

Answer:

10 exterior angles of 36° , 10 interior angles of 144° , and 10 vertices

Step-by-step explanation:

(PLEASE ANSWER!) Two distinct lines, L and M, are each perpendicular to the same line N. What is the measure of the angle where line L meets line N? What is the measure of the angle where line M meets line N?

Answers

Answer:

90 and 90

Step-by-step explanation:

If they are perpendicular it means they cross at a 90 degree angle so since both L and M are perpendicular to N both the answers would be 90

Hope This Helps :)

The measure of the angle where line L meets line N is 90° ;

and the measure of the angle where line M meets line N is 90°.

What are perpendicular lines?

In geometry, perpendicular lines are defined as two lines that meet or intersect each other at right angles (90°).

Now it is given that,

Two distinct lines, L and M, are each perpendicular to the same line N.

Line L is perpendicular to line N.

Since angle between two perpendicular lines =  90°.

So, angle between line L and line N = 90°

Similarly, Line M is also perpendicular to line N.

Therefore, angle between line M and line N = 90°

Thus, The measure of the angle where line L meets line N is 90° ;

and the measure of the angle where line M meets line N is 90°.

To learn more about angles :

https://brainly.com/question/13524681

#SPJ6

need help asap dont know how to do it​

Answers

Division. Divide 45 by -3
Would you be asking for help with Question 13 or 14?

A bottle of water contains 450ml. How many litres of water are there in 8 of these bottles

Answers

Answer:

3.6 litres

Step-by-step explanation:

1 bottle = 450ml

8 bottles = 450 × 8

               = 3600ml

1000ml = 1 litre

3600ml = 3.6 litres (3600÷1000)

Answer:

3.6 litres

Step-by-step explanation:

1 bottle = 450ml

8 bottles = 450 × 8

              = 3600ml

1000ml = 1 litre

3600ml = 3.6 litres (3600÷1000)

2/5 divided by 1/8. Simplest form

Answers

Answer:

1/20 or in a decimal 0.05

Step-by-step explanation:

Hope This helps :)

Answer:

The correct answer is 3 and 1 over 5 also written as 3 1/5

Step-by-step explanation:

HAVE A GOOD DAY!

what is 12x − y = 10 in slope form equation?

Answers

Y=12x-10


Explanation:

You basically what to get y by itself so-

12x-y=10

You will add y to both sides

12x=y+10

Then subtract ten from both sides

12x-10=y or y=12x-10

H E L P!


Your brother has a bag of marbles. He has 8 green marbles, 3 blue marbles, 7 red marbles, and 2
yellow marbles.

What is the ratio of blue and yellow marbles to red marbles?

(Write your ratio as a
fraction)

Answers

Answer:

3+2:7

Step-by-step explanation:

Answer:

1/5

Step-by-step explanation:

Blue mables: 3

green and red marbles: 8 + 7 = 15

then, the radio blue:(green+red) is:

3 : 15

simplified unit rate is:

3/3 = 1

15/3 = 5

then:

3:15

is equal to:

1:5

=

1/5

Emily has a babysitting job that pays $11 per hour. She wants to know how many hours she has to babysit to afford a
new iPad that is $165. Which equation will represent this situation with h representing the number of hours Emily
has to babysit?

165 = 11 -
165 = 11 +h
165 = 11/h
165 = 11h
с
Od
Review Answers
Saved at 7:52 am

Answers

Answer: 165=11h

Step-by-step explanation:

I believe it would be 165=11h because you have to multiply the number of hours she worked times 11 to get the amount that would equal 165!

The radius of a circle is 12 in. Find its area in terms of \piπ.

Answers

Answer:

pi144

Step-by-step explanation:

square the radius but dont multiply by pi because the question wants you to leave it out.

Find the area of the trapezoid,
6 in.
4 in.
8 in.
7
The area is
square inches

Answers

Answer:

I think the answer is 8 inches

If Kara cuts 2 pounds of cheese into blocks that each weigh
1
3
pound, how many blocks of cheese will she make?
blocks

Answers

The answer would be 6 blocks of cheese

Did I do this right? Pls help thx

Answers

I am sure your right!!!

Answer:

yes that is correct

Step-by-step explanation:

explain why n(n-1) must be an even number

Answers

Whether n is an even or odd number, you will always have an even number and an odd number multiplying each other. An even number times an odd number is always an even number.

What is the equation of the line with a slope of 3 and a y-intercept of -2, written in slope intercept form?

Answers

Answer:

y=3x-2

Step-by-step explanation:

Slope intercept form is

y=mx+b

m=slope

while

b=y-intercept

So you replace the variable with the number that is equal to it:

(A variable is a letter that is unknown like m and b)

y=3x-2

Hope this helps!

Answer:

y = 3x -2

Step-by-step explanation:

formula: y =mx+b, m is slope

What is the slope of the lined graphed above?
-2
-1
-1/2
1/2
2

Answers

(0,1), (2,0)
(0-1)/(2-0) = -1/2
The slope is -1/2

Answer: D. 1/2

Step-by-step explanation:

x equal??


helppp plssss

Answers

Answer:

ngghhjjhgifiufigfigiufuff

Answer:

X=4

Step-by-step explanation:

answer with work plus it's the bottom one

Answers

4x+7=23 is the equation
4x=16
x=4
the number is 4

The scale on a map is 1 inch= 2.5 miles. Two towns on the map are 6 inches apart. What is the actual distance between the towns in miles

Answers

Answer:

15 miles

Step-by-step explanation

After setting up a ration you multiply the 2.5 by 6 to get 15.

Write an algebraic expression to represent the following:

The product of 7 and the sum of a number, y, and 3.

Answers

Answer:(7+x)(y+3)

Step-by-step explanation: 7 plus X times Y plus 3

PLZ HELP ASAP!!!!!!!!

Answers

Answer:

Step-by-step explanation:

formula for cylinder:V=πr2h

shape of the base: circle

formula for circle: A=πr2

radius: 6.5cm

height: 16cm

V=3.14x6.5^2x16

2122.64cm^3

Answer:

Step-by-step explanation:

The formula for volume a a cylinder is V=pi*r²h

The shape of the base is circular

the formula for area of a circle is A=pi*r²

The radius is 6.5 cm

The height is 16 cm

V=pi x 6.5² x 16

The volume of the cylinder is 2123.72

Hope this helps:)

After 6 hours, 4 inches of snow have fallen. Assume it continues just know at a constant rate complete the table to show how much snow have fallen after 1,2,6 and 8 hours

Answers

Answer:

Step-by-step explanation:

For 6 hrs and 4 inches that's 2/3 an inch for every hr

1 hr  2/3 inches

2 hrs 1.3 or 1 1/3 inches

6 hrs 4 inches

8 hrs 5.3 or 5 1/3 inches

need help with math ​

Answers

2) no solution

3) x=3

help!!! which is the correct answer ​

Answers

Answer:

There are no solutions

Step-by-step explanation:

Answer:

the answer is B;

Step-by-step explanation:

5x-4≥12

c.l.t

5x≥12+4

5x≥16

X≥16/5

or

3,1/5

which is still 16/5

x≥16/5

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