1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
enot [183]
3 years ago
7

Solve the equation. 2x+4+8x=24

Mathematics
2 answers:
evablogger [386]3 years ago
6 0

Answer:

\boxed{\boxed{\sf x=2}}

Step-by-step explanation:

\sf 2x+4+8x=24

Combine like terms:

  • \sf 2x+8x+4=24
  • \sf 10x+4=24

Subtract 4 from both sides:

  • \sf 10x+4-4=24-4
  • \sf 10x=20

Divide both sides by 10:

  • \sf \cfrac{10x}{10}=\cfrac{20}{10}
  • \sf x=2

____________________________

Rasek [7]3 years ago
3 0

2x + 4 + 8x = 24

2x + 8x = 24 - 4

10x = 20

x = 20 ÷ 10

x = 2

____

Hope it helps!

꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂ ❤

You might be interested in
8a. Brian has $24 worth if pizzas delivered to his house for a $3 delivery fee.
dsp73

Answer:

32.94

Step-by-step explanation:

24(.22) [Both Sales tax and tip.] = $5.28 Add to the 27. You get $32.28

Or, you could be estimating based on the delivery fee too. Which the would be this:

27(.22) = 5.94 + 27 = 32.94

5 0
3 years ago
What is 1.532 rounded to the nearest hundredth
Anni [7]

Answer:

1.53 would be the answer

Step-by-step explanation:

If you are rounding to the nearest hundredth you are rounding to the 2nd decimal place. Since the next number is under 5, we would just drop it.

8 0
3 years ago
Keisha makes a large sandwich for a family picnic. She takes 1/2 of the sandwich to the picnic.At the picnic, her family eats 3/
Vesna [10]
1/2 - 3/8 = 4/8 - 3/8 = 1/8
you have to find a common denominator before you can subtract. in this case it is 8
6 0
3 years ago
A plane is flying east at 115 m/s. The wind accelerates it at 2.88 m/s^2 directly northwest. After 25.0 s, what is the direction
Finger [1]
<h3>Answer: 38.5 degrees</h3>

======================================================

Explanation:

The east direction is the vector < 1, 0 >

If the plane is flying in this direction, we want a vector to point in the direction of < 1, 0 > and we want it to have a magnitude of r = 115. So we simply scale this vector with scale factor 115

< 1, 0 > turns into < 115, 0 >

I multiplied both coordinates by 115.

If we do not account for the wind, the plane's velocity vector is < 115, 0 >

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

The wind's velocity vector is a bit trickier. We're told that the magnitude of the wind's acceleration vector is 2.88 m/s^2. This means every second, the wind's speed is increasing by 2.88 m/s. After 25 seconds, the speed of the wind is 25*2.88 = 72 m/s, which is the magnitude of the wind vector.

So r = 72

The angle of the wind is theta = 135 as we are in the northwest direction, so we subtract 45 from 180 getting 180-45 = 135. The diagram below might help. The purple vector is in quadrant Q2. Alternatively, you can add 45 degrees to 90 and you'd get 45+90 = 135 which is the same direction.

The x and y components of the wind's velocity vector is

x = r*cos(theta) = 72*cos(135) = -50.911688 = -50.9

y = r*sin(theta) = 72*sin(135) = 50.911688 = 50.9

meaning that

< x, y >  = < -50.9, 50.9>

is the approximate wind velocity vector

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

What do we do from here? Well we have the plane's velocity vector < 115, 0 > , without the wind involved, and we have the wind's vector of < -50.9, 50.9>

Vector addition will yield the resultant vector. This vector is the true direction of where the plane is going after we account for the wind speed. Without the wind speed, the plane will go directly east. However, with the wind speed, the plane will go in the direction of the red vector arrow (see diagram below).

So we have,

< 115, 0 > +  =

+ = < 64.1, 50.9>

The plane's resultant vector is approximately which is the velocity vector of the plane after we account for wind.

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

The last step is to compute the theta of this resultant vector

theta = arctan(b/a)

theta = arctan(50.9/64.1)

theta = 38.452096

theta = 38.5

This theta value is represented of the red vector in the diagram below.

7 0
3 years ago
Elise built a rectangular vegetable garden that is 999 feet long and has an area of 72 square feet.
Rzqust [24]
Perimeter of a rectangle=2(long)+2(width)

1)we calculate the width.
area=long x width

data:
area =72 ft².
long=9 ft

72 ft²=9 ft * width
width=72 ft²/9 ft=8 ft.

2) we calculate the perimeter.
perimeter=2(9 ft)+2(8 ft)=18 ft + 16 ft=34 ft.

Answer: the perimeter of Elise`s vegetable garden is 34 ft. 
8 0
3 years ago
Other questions:
  • 4c + 3(c - 2) = -34<br> I need help
    12·1 answer
  • suppose you cut a sheet of paper into fourths and throw away three of fourths . you cut the remaining fourth into fourths and th
    8·1 answer
  • Which measurement best describes about how much water is in the Boston aquarium's fish tanks?
    14·2 answers
  • A pattern of letter arrangements begins with 3steps below. First, continue the pattern for 3 more step:
    11·1 answer
  • a file that is 256 megabytes is being downloaded. if the download is 18.9 % complete, how many megabytes have been downloaded? R
    7·1 answer
  • ???????help for extra points
    13·2 answers
  • To pass a quiz, students need a score of at
    10·2 answers
  • A jacket cost $35.50 more than a pair of tennis shoes if the total cost of both items is $161.30 find the cost of each
    12·1 answer
  • X +2y =6<br> 2x - 3y =26 <br> solve each system. Tell how many solutions each system has
    8·1 answer
  • Solve using the pathagorean theorem​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!