solve 4x-(12÷3)+2x=20

Answers

Answer 1
x=4 
4x-(12÷3)+2x=20
4x-(4)+2x=20
4x4-4+2x4=20
16-4+8=20
12+8=20
Answer 2
4x - ( 12 ÷ 3 ) + 2x = 20
4x - 4 + 2x = 20            Always begin with subtraction or multiplication first 
4x + 2x - 4 = 20            Combine term 
6x - 4 = 20                    Add 4 for each side 
6x = 24                          Divide by 6 fro both side 
x = 4

Related Questions

A camera rental company charges a fixed amount plus a fee based on the number of days for which the camera is rented. The graph below shows the amount paid for a different number of days to rent the camera: A graph titled Camera Rentals plots the Number of Days on the x axis and the Amount in dollars on the y axis. A straight line joins the ordered pairs 0, 40 and 4, 120. What is the fixed amount charged? $20 $30 $40 $80

Answers

(0,40)(4,120)
slope = (120 - 40) / (4 - 0) = 80/4 = 20

y = mx + b
slope(m) = 20
(0,40).....this means we have a y int of 40

so ur equation is : y = 20x + 40......this basically means the fee is $ 20 per day....and the fixed amount is $ 40 <===

I need help to calculate (The three at the end is to the third power!)
(−1)3
Thank you!!!!!!

Answers

( -1) 3^3

( - 1 )  27 

- 27 is the answer
(-1)^3 =
-1 x -1 x -1
1 x -1
-1
So, (-1)^3 = -1

William put 0.83 liter of water into a bucket. Matt put 0.98 liter of water into another bucket. When they combined their water into a bigger bucket 10% of the water spilled out. The water they collected had a weight of 1.021 kilograms per liter of water. The expression show below represents the weight, in kilograms, of the water in the bigger bucket. [0.9(0.83 + 0.98)] x 1.021 Rounded to the nearest thousandth, what is the weight, in kilograms, of the water in the bigger bucket?


1.663


1.748


1.763


1.848

Answers

I believe that the answer is A.

An airplane takes 4 hours to travel a distance of 2600 miles with the wind. The return trip takes 5 hours against the wind. Find the speed of the plane in still air and the speed of the wind.

Answers

2,600/4 =650
650•5 =3,250


I found the unit rate of the 2,600 by dividing the per hour and then times it by the 5 hours

Hopefully that was what you were looking for

The speed of the plane in still air = 585 mph

and the speed of the wind = 65 mph

What is speed?

"It is the distance covered per unit time."

What is the formula of speed?

"speed = distance/time"

For given question,

Let, the speed of the airplane in still air = x mph

and the speed of the wind = y mph

So, the speed of the airplane with the wind = (x + y) mph

and the speed of the airplane against the wind = (x - y) mph

Here, the distance (d) = 2600 miles

An airplane takes 4 hours to travel a distance of 2600 miles with the wind.

[tex]\Rightarrow x+y=\frac{2600}{4} \\\\\Rightarrow x+y=650~~~~~~~~~~.........................(i)[/tex]

The return trip takes 5 hours against the wind.

This means, an airplane takes 5 hours to travel a distance of 2600 miles against the wind.

[tex]\Rightarrow x-y=\frac{2600}{5}\\\\ \Rightarrow x-y=520~~~~~~~~~~............................(ii)[/tex]

From equation (ii),

x = 520 + y                ........................(iii)

Substitute this value in equation (i),

⇒ (520 + y) + y = 650

⇒ 2y = 650 - 520

⇒ 2y = 130

⇒ y = 65 mph

Substitute the value of y in equation (iii),

⇒ x = 520 + y  

⇒ x = 520 + 65

⇒ x = 585 mph

Therefore, the speed of the plane in still air = 585 mph

and the speed of the wind = 65 mph

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Haley's car gets at least 17 miles per gallon. If she plans a trip that is 250 miles, what is the minimum number of gallons she'll need?

Answers

Divide 250 miles by 17 mpg:

250 miles
-------------- = 14.7 gallons (absolute mininum).  Go for 15 gallons.
  17 mpg

Answer:

15 gallons

Step-by-step explanation:

Luis rode his bike after school for 48 min. For what part of an hour did he ride his bike. Simplest form

Answers

it is 4/5
hope this helped
The answer is 4/5 or four fifths

an item cost $340 before tax and then the sale tax is $6.80.find the sales tax rate. write your answer as a percentage

Answers

The sales tax is 2% of the entire price.

What numbers is divisible by 492,570

Answers

If you still mean divisible by, then multiply that number by any whole number and you have your number. ie 492,570*2.

If you mean the factors, then let me know.

Write the standard number for eighteen and forty-three thousandths

Answers

it will be 18,430 in standeard form
Final answer:

The standard number for 'eighteen and forty-three thousandths' is written as 18.043. We express the 'forty-three thousandths' part as .043 and combine it with the whole number 18.

Explanation:

The standard number for "eighteen and forty-three thousandths" is written in the decimal format. The whole number, in this case, is 18 and the decimal part is .043 when we express the words 'forty-three thousandths'. Combined together, the number is written as 18.043.

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The perimeter is 128 inches and the width is 30 inches what is the length of the rectangle

Answers

The length is 68 inches
I got 68 for the langth too, :)

A newborn baby gained 9/16 of a pound in 1/4 of a month. What was the baby's growth rate in pounds per month?

Answers

The answer is 2 1/4 because you're trying to find the unit rate. 
9/16             1
-------   =   -------
 1/4              x
You cross multiply
9/16x = 1(1/4)
And solve for x, which gets you to two and a fourth.  

5/8 times 1/2 in fraction form

Answers

Wait I almost got it it's that I'm dumb lo l

5/8 times 1/2 in fraction form is 5/16.

Here it is needed to find the product or the multiplication of the fractions 5/8 and 1/2.

Whenever a number is taken times to another number, the operation is multiplication.

Here the numbers are fractions.

For fractions, multiplication is in such a way that when two fractions are multiplied, multiply the numerators and the denominators separately and write it as such.

5/8 × 1/2 = (5 × 1) / (8 × 2)

               = 5/16

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Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah a total of 14 people took the trip. She was able to purchase coach tickets for ​$240 and first class tickets for ​$1130. She used her total budget for airfare for the​ trip, which was ​$10,480. How many first class tickets did she​ buy? How many coach tickets did she​ buy?

Answers

[tex]\left\{{{240x+1130y=10480,}\atop{x+y=14;}}\right \left\{{{240x+1130y=10480,}\atop{y=14-x;}}\right \\\left\{{{240x+1130(14-x)=10480,}\atop{y=14-x;}}\right \left\{{{240x+15820-1130x=10480,}\atop{y=14-x;}}\right \\\left\{{{-890x+15820=10480,}\atop{y=14-x;}}\right \left\{{{-890x=10480-15820,}\atop{y=14-x;}}\right \\\left\{{{-890x=-5340,}\atop{y=14-x;}}\right \left\{{{890x=5340,}\atop{y=14-x;}}\right \\\left\{{{x=6,}\atop{y=14-6;}}\right \left\{{{x=6,}\atop{y=8;}}\right[/tex]

The answers to your specific question is Sarah bought 6 coach tickets and 8 first class tickets.

At the rate of $7.22 how much will Whitney eat in 40 hours

Answers

Let h = how much in 40 hours

h = 7.22(40)

You finish.
$288.80 HOPE IT HELPS

Hayley begins solving this problem by combining like terms. 3x + 5x = 10 Which problem requires the same strategy (combining like terms)? A) 5x=20 B) 3(x + 5) = 20 C) x ÷ 4= 30 D) 3x - 2x = 10

Answers

D) 3x - 2x = 10 is the answer to this equation 

Answer:

D) 3x - 2x = 10

Explanation:

To combine like terms, you add or subtract terms that have the same variables and exponents.  In the problem we are given, 3x and 5x are like terms; we would add them together and then continue solving.

In choice A, there are no like terms to combine.

In choice B, we would use the distributive property; after that, there are no like terms to combine.

In choice C, we would cancel the 4; there are no like terms to combine.

Choice D has two like terms, 3x and 2x.  We would subtract them and then continue solving.

1. BAKING A recipe for 1 apple pie calls for 6 cups of sliced apples. How
many cups of sliced apples are needed to make 4 apple pies?
2. BASEBALL CARDS Justin bought 40 packs of baseball cards for a discounted
price of $64. If he sells 10 packs of baseball cards to a friend at cost,
how much should he charge?
3. SOUP A recipe that yields 12 cups of soup calls for 28 ounces of beef
broth. How many ounces of beef broth do you need to make 18 cups of
the soup?
4. ANIMALS At a dog shelter, a 24-pound bag of dog food will feed 36 dogs
a day. How many dogs would you expect to feed with a 16-pound bag
of dog food?
5. AUTOMOBILES Mr. Fink’s economy car can travel 420 miles on a 12-gallon
tank of gas. Determine how many miles he can travel on 8 gallons.

Answers

Answer:


Step-by-step explanation:


The rabbit population in a certain area is 500​% of last​ year's population. There are 300 rabbits this year. How many were there last​ year? There were rabbits last year.

Answers

There was 60 rabbits last year

500% - 5.00

300 / 5 = 60

 there were 60 rabbits last year

A Recipe for party mix calls for 3/4 cup of cereal , 1/4 Cup of walnuts, 5/8 cup of crackers , and 1/2 cup of raisins . determine the number of cups in the mix. write the answer in the simplist form ?
A. 2 1/8
B. 1 1/8
C. 10/18
D. 17/8

Answers

3/4=6/8, 1/4=2/8, 5/8=5/8, 1/2=4/8.
6/8 + 2/8 + 5/8 + 4/8 = 17/8
17/8 = 2 1/8
The answer is A: 2 1/8
Have to find the same denominator. 16. 3/4= 12/16 ; 1/4=4/16 ; 5/8 10/16 ; 1/2 = 8/16  34/16 

which is 2 1/8

Explain if you can. I'm really confused!

Answers

If you divide y/x it shouldn't be too hard to understand once you get it over with.

What can be answered with science?

Questions that are non-testable
Questions about things that can be measured
Questions that ask about an opinion
Questions that ask about a moral value

Answers

Question about things that can be measured.

Can someone help me find 2 skews and 2 perpendicular lines thanks

Answers

Skews:
DE & FA
EB & DG

Perpendiculars:
AB & BE
BC & CD

Write 100,000 as a power of 10. A) 103 B) 104 C) 105 D) 106

Answers

 A)[tex]10^3[/tex] = 10 * 10 * 10 = 1,000
It is not A

B)[tex]10^4[/tex] = 10 * 10 * 10 * 10 = 10,000
It is not B

C)[tex]10^5[/tex] = 10 * 10 * 10 * 10 * 10 = 100,000
It could be C

D)[tex]10^6[/tex] = 10 * 10 * 10 * 10 * 10 * 10 = 1,000,000
It is not D

Your answer is C)[tex]10^5[/tex]

Hope I helped!

The number 100,000 is written power of 10 as [tex]10^5[/tex]. Therefore, option C is the correct answer.

The given number is 100,000.

We need to write 100,000 as a power of 10.

What is scientific notation?

To determine the power or exponent of 10, let us understand how many places we need to move the decimal point after the single-digit number.

If the given number is multiples of 10 then the decimal point has to move to the left, and the power of 10 will be positive.If the given number is smaller than 1, then the decimal point has to move to the right, so the power of 10 will be negative.

Now, 100,000 can be written as [tex]10^5[/tex].

The number 100,000 is written power of 10 as [tex]10^5[/tex]. Therefore, option C is the correct answer.

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what is the value of 412.321 if the underlined diget is 1 on the part .321?

Answers

The one on the part .321 is in the thousandths place

the underlined digit is the thousandths place 

What is x? 3x+4y=70 and 8x-3y=9

Answers

I am pretty sure x is 6

3. At a bargain store, Tanya bought 3 items that each cost the same amount. Tony bought 4 items that each cost the same amount, but each was $2.25 less than the items that Tanya bought. Both Tanya and Tony paid the same amount of money. What was the individual cost of each person's items? (a) Write an equation. Let x represent the cost of one of Tanya's items. (b) Solve the equation. Show your work. (c) Check your solution. Show your work. (d) State the solution in complete sentences. Answer:

Answers

3x = 4(x-2.25)

3x = 4x-9

add 9 to both sides

3x+9 =4x

subtract 3 x from each side

x=9

Tonya's items were $9 each

Tony's items were 9-2.25 = 6.75 each

check:

9*3=27

4 *6.75 = 27

An internet bookseller charges $6 per paperback book plus a $3 shipping and handling fee per order. If Mr. Montoya spent $111 on books for his class, how many books did he buy?

Answers

You would add 6+3 which equals 9 and then you would divide 111/9 and you get 12.33333...
So he bought 12 books

a butcher has 10 3/4 pounds of ground beef that will be process at $3.40 per pound. he divides the meat into 8 equal packages. to the nearest cent, what will be the price of each package? explain how you know that your answer is reasonable

Answers

It would equal about $4.60. 

Please Geometry Help!!!!!

Mulch to cover a rectangular garden costs $48. Mulch is needed to cover a larger, similar garden. The ratio of dimentions is 2:3. How much would it cost to cover the larger garden?

A) $288
B) $192
C) $72
D) $108

Answers

The cost of covering the larger garden is $192. So option (b) is correct.

To solve this problem, let's first find the dimensions of the larger garden.

Given that the ratio of dimensions between the two gardens is 2:3, let's assume the dimensions of the smaller garden are 2x and 3x, where x is a common factor.

So, the smaller garden's area is (2x) * (3x) = 6x².

Now, let's find the area of the larger garden. Since the ratio of dimensions is 2:3, the dimensions are 2(2x) and 3(2x), which are 4x and 6x.

Thus, the larger garden's area is (4x) * (6x) = 24x².

Now, since the cost of mulch is directly proportional to the area, we can set up a proportion to find the cost.

(6x²) / (24x²) = $48 / Cost of covering the larger garden

Solving for the cost of covering the larger garden:

Cost of covering the larger garden = ($48 * 24x²) / (6x²)

= $192

So, the correct answer is B) $192.

I am k years old and my daughter is y years younger.
What is the sum of our ages?
What will be the sum of our ages next year?
What will be the difference of our ages next year?
The sum of our ages is
, the sum of our ages next year will be
, the difference of our ages next year will be

Answers

Answer:

sum: k + (k-y)

next year : (k+1) + ((k+1) -y))  or (k+ (k-y)) + 2

Difference: No matter what year it is the difference between the ages is the same... so (k + (k-y)) ?

Step-by-step explanation:

I hope this helps

Final answer:

This year, the sum of your ages is 2k - y. Next year, the sum of your ages will be 2k - y + 2, and the difference in your ages will remain y.

Explanation:

If you are k years old and your daughter is y years younger, then your daughter's age is 'k - y'. The sum of your current ages is k + (k - y), which simplifies to 2k - y.

Next year, both of you will be one year older. Therefore, the sum of your ages next year would be '(k + 1) + (k - y + 1)', which simplifies to 2k - y + 2.

The difference in your ages next year would still be 'y' because the ages increase uniformly and the difference between your ages doesn't change.

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The Masons are driving home from a trip. The function graphed models the Masons' distance from home, y, in miles, after x hours of driving.

What do the key features of the graph indicate in this situation?

Drag and drop the answers into the boxes.The / indicates that the Masons are mi from /home when they begin driving.

Answers

The 1.Y-intercept indicates that the Masons were 2.400 mi home when they begin driving.

I made a 100% on this test.
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