Write a real-world problem that can be solved using the equation 9+4x=21−2x.

Answers

Answer 1

1. you have to subtract 9 from both sides. 21-9= 12

2. you have to add 2x to both sides. 4x+2x= 6x

3. 6x divided by both sides =

4.x=2


Related Questions

It takes 404040 ink cartridges and 200200200 pages to print a book, and it takes 303030 ink cartridges and 808080 pages to print a magazine. Sarah wants to print books and magazines with at most 300300300 ink cartridges and 120012001200 pages. Let BBB denote the number of books she prints and MMM the number of magazines she prints.

Answers

Answer:

40B +30M ≤ 300

200B +80M ≤ 1200

Step-by-step explanation:

The inequality functions are as follows:

For 40 cartridges per book and 30 cartridges per magazine and at most 300 cartridges are used

So the function would be

40B +30M ≤ 300

Now the another would be

There are 200 pages for printing a book and 80 pages are required for printing a magazine also she used at most 1,200 pages

So, the function would be

200B +80M ≤ 1200

Can anyone tell me theorem of Parallelogram*#​

Answers

Answer:

Theorem 1: In a parallelogram, the opposite sides are of equal length. Theorem 2: If the opposite sides in a quadrilateral are the same length, then the figure is a parallelogram. Theorem 3: A quadrilateral is a parallelogram if and only if the diagonals bisect each other.

Step-by-step explanation:

Hope this helps!!!

i suck at math sadly i wish i could

please help me write this equation​

Answers

The answer is, y = -1/3 - 3

Last week, animals R us sold 35 Total pets, Some cats in some dogs. They made a total of $1975. Dogs sell for $75 cats sell for $25. How many dogs did animals R us sell. show your work !

A. 14
b.35
c.22
d.17​

Answers

Answer:

he sold 22 dogs and 13 cats

number of dogs = 22

plz mark my answer as brainlist plzzzz and option C .22 is the correct answer

Answer:

c. 22

Step-by-step explanation:    

75 x 22= 1650

35-22=13

13 x 25= 325

325+1650= 1975

What is 723 divided by 31 , 1359 divided by and , 851 divided by 77 . Thank you!

Answers

Answer:

23.3 and 11.05

Step-by-step explanation:

hope it helped!

NEED HELP ASAP‼️‼️‼️‼️‼️‼️ IL CASH APP 20$ IF CORRECT ‼️‼️‼️‼️What is the solution to this system?

{2x + y = 8
{y = 2x + 4

Answers

Answer:

x = 1 and y = 6

Step-by-step explanation:

Add these equations

-2x+y=4

2x+y=8

2y=12

    2

y = 6

Plug in 12 for y.

-2x+(6) = 4

     -6    -6

-2x = -2

     -2

x = 1

Brenton’s weekly pay, P(h) , in dollars, is a function of the number of hours he works, h. He gets paid $20 per hour for the first 40 hours he works in a week. For any hours above that, he is paid overtime at $30 per hour. He is not permitted to work more than 60 hours in a week.

Answers

No se cual es esa respuesta porque no

find da surface area plz i will give brainlest to best anwser an thanks

Answers

Answer:

multiply all of it

Step-by-step explanation:

11.3 x 6 x 8 x 8

10.3 x 13 x 9 x 5

=

26145849.6

Reduce

For the first one:
227.8
For the second one:
360.9

the question is on the sheet.​

Answers

area of the whole figure

= (x + 1)(2x + 3)

= x(2x + 3) + 1(2x + 3)

= 2 {x}^{2} + 3x + 2x + 3

= (2x)^(2} + 5x + 3

area of the unshaded region

= x(2x)

= 2x²

area of the shaded region

= 2x² + 5x + 3 - 2x²

= (2x² - 2x² ) + 5x + 3

= 5x+ 3

THEREFORE,

THE AREA OF THE FRAME IS C. 5x + 3

The equation y = 40x shows the number
of words Diego types in x minutes. What is
the constant of proportionality?

Answers

Answer:

40

Step-by-step explanation:

i would say 40? because it will be a constant for how many times you do X. for example if it's Y = 40 (2) it would equal 80 because no matter what number you put in X 40 will have to be multiplied

You finish

3/8 of the project. Your friend finishes 1/4 of the project. What

fraction of the project is finished?

Answers

Answer: 5/8 of the project is done

Need help asap please!!

Answers

Answer:

A) 40 + d

B) 45 days

Step-by-step explanation:

A)

total cost = (cost of the air conditioner itself) + (money charged per day)*(days)

cost of air conditioner itself = $40

money charged per day = $1

days = d

40 + 1*d

= 40 + d

B)

total cost = 40 + d

total cost = $85

85 = 40 + d

45 = d

Time used the air conditioner for 45 days.

Which of the following could be the equation of a parallel to the line y=4?
•y=0
•y=4
•undefined
•y=4x

Answers

Answer:

y = 0 is parallel to y= 4 ..plz mark my answer as brainlist plzzzz if correct

y= 0 is parallel to y=4

I think it will help you.

Please help ! !!!!!!!!

Answers

Answer:

c, 50

Step-by-step explanation:

120-24= 96

Since we are measuring the size of one of the halves, you have to split that number in half, so 96 ÷ 2= 48.

48 rounds up to 50, so 50 is the answer

im so lost could you please help me​

Answers

I think you will use the equation Ax+By=C, I am not quite sure though

Answer:

hosta = 2 $,,, geranium = 5 $

Step-by-step explanation:

if we make two eq.

1) .... 54 = 2h + 10g

2) ...... 40 = 10h + 5g

if we multiply 1st by -5 it turns to

3) ..... -270 = -10h - 50g

cancel both 10h

add eq. .. becomes : -230 = -46g

g = 5

substitute in any find , that h = 2

The point (-3, 15) undergoes a translation of 9 units right and 10 units down. What are the coordinates of the new
point?
(-12,10)
® (-12,5)
(6,10)
D (6,5)

Answers

Answer:

This would be D. (6, 5)

Step-by-step explanation:

When moving 9 to the right, you take -3 and add 9 to it, which gives you 6.

Do the same thing with 15, but subtract 10 from it, since you are going to the left. This gives you 5.

Therefore, your answer should be (6, 5)

-3 + 9 = 6

15 + 10 = 5

Rewrite
barrel
as a unit rate
hour
A barrel/hour
B. barrels/hour
c. 10 barrels/hour
barrel/hour

Answers

Answer:

C

Step-by-step explanation:

vmlstjtndgydcyedhdhdh

Need help once again
Question is in the screenshot
No spam and no useless answers for the points

Please show your work

It means a lot to me :)

Answers

Hi there!

[tex]\large\boxed{\text{ She is incorrect.}}[/tex]

The format of a logarithmic equation is:

[tex]a^{b} = c\\\\log_{a}c = b[/tex]

In this instance:

a = e

b = 3x

c = 7

Rewrite as the logarithmic equation:

[tex]log_{e}7 = 3x[/tex]

Solve. Evaluate [tex]log_{e}7[/tex] and use algebra to find x:

[tex]1.946 = 3x\\\\x = 0.649[/tex]

please hurry Solve: -23 = x - 23 *

Answers

Answer:

x = 0

Step-by-step explanation:

add 23 on both side and x equals zero

substitute x for 0, and the equation is still correct

X =0

Hope this helps and merry Christmas!!

PLEASE HELP ITS DUE SOON! 40 points and i'll mark you as brainliest!! Also explain how you got the answer!!!

Answers

Answer: 6, 4.5

Step-by-step explanation:

Jenny is getting ready to go see "Black Christmas" with her friends and is trying to decide what to wear. She has 3 shirts : 1 blue, 1 purple and 1 red. She can also wear jeans or a skirt and she can wear boots or flats. How many different outfits can

Help me please also put step by step please.​

Answers

Answer:

2 outfits.

Step-by-step explanation:

Answer:

12 different outfits

Step-by-step explanation:

3 shirts

jeans or skirt: 2 choices

boots or flats: 2 choices

If you have several thing you can do and each one has a number of choices, the total number of variations is the product of the numbers of choices.

3 * 2 * 2 = 12

Answer: 12 different outfits

70 points
Need answer fast

Answers

I would say C.

-if 77 is 16.5 then i would guess a 75 gram plant would put off not much less

Answer:

C

Step-by-step explanation:

We did this in math ik it is right. Hope this helps! :)

You and 3 friends decided to share a pizza. If everyone got 2 pieces each, how many total pieces of pizza were there to begin with?

Answers

Answer:

8

Step-by-step explanation:

dhdhdhdhdhdhdhddijd

Answer:

6 pieces of pizza was started with

if the equations 100x+300=500 and x+3=5 give the same answer, how are they related?

please help this is due soon

Answers

Answer:

Both are related as both have the answer same that is x=2.

It is possible to construct an equilateral triangle using only a straightedge and a compass.

Answers

Answer:

yes it is possible

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

3 erasers cost $4.41
What equation would help determine the cost of 4
erasers?

Answers

Answer:

Well you can divide 4.41 by 3 and then use that number and multiply it by 4

Step-by-step explanation:

Answer:

Using this equation: f(x) = 1.47x

The cost of 4 erasers is 5.88

each costs 1.47

Will mark brainliest plz help

Answers

Answer:

AE = 30

GD = 5

GF = 10

Step-by-step explanation:

Centroid of medians divide median in the ratio 2 : 1

Therefore,

AG : GE : 2 : 1

Let AG = 2x & GE = x

Since, AG = 20....(given)

Therefore, 2x = 20

x = 20/2

x = 10

GE = x = 10

AE = AG + GE = 20 + 10 = 30

CG : GD : 2 : 1

Let CG = 2x & GD = x

Since, CG = 10....(given)

Therefore, 2x = 10

x = 10/2

x = 5

Since, GD = x

Therefore, GD = 5

BF = 30

2x + x = 30

3x = 30

x = 30/3

x = 10

GF = 10

A bag contains 3 blue marbles, 2
green marbles and 1 red marble.
What is the probability of pulling a
red marble from the bag?
a) 12
b) 1/3
c) 1/5
d) 1/6
Help ASAP

Answers

Answer:

D 1/6

Step-by-step explanation:

There are 6 total marbles and only one of them is red so

1=red

6=total

1/6

PLZ MARK ME BRAINLIEST

What are you guys getting for x-Mas

im getting skateboards

Answers

iPad and a Macbook and etc..

This is hard. Again T^T

Answers

The answer to your question is 150
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