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
Darya [45]
3 years ago
6

What is 3(4x+1)-9x=12-6x

Mathematics
2 answers:
bixtya [17]3 years ago
8 0
THE ANSWER IS 4 because you take 3x4x which equals 12x minus 9x equals 3.so 3x plus one euqls 12-6x 9 minus six is 3 equals 12.12 divided by 3 is 4

puteri [66]3 years ago
4 0
First, distribute the 3 to 4x and 1. So it will be 12x + 3. Then put together like terms on the left side. 3x+3 =12-6x. Next, subtract 3 from each side. 3x=9-6x. Then, add 6x. 9x=9. Divide by 9 and your answer is X=1
You might be interested in
A Web music store offers two versions of a popular song. The size of the standard version is 2.9 megabytes (MB). The size of the
Lady bird [3.3K]
Write the equations: 2.9s+4.7h=6076
 \\ h= 4s
Substitute for h: 2.9s+4.7(4s)=6076
Solve for s:2.9s+4.7(4s)=6076 \\ 2.9s+18.8s=6076 \\ 21.7s=6076 \\ s=280
There were 280 downloads of the standard version. There were 1120 downloads of the high-quality version.
5 0
2 years ago
Please help i put a picture below
PSYCHO15rus [73]

Answer:

Step-by-step explanation:

This is not nearly as threatening and scary as I first thought it was.  You must be in the section in Geometry where you are taught that perimeter of similar figures exist in a one-to-one relationship while areas of similar figures exist in a squared-to-squared relationship.  We will use that here.  

The area formula for a regular polygon is

A=\frac{1}{2}ap where a is the apothem and p is the perimeter.  We are first asked for the area of the polygon, but it would make more sense to find the perimeter first, since we need it to find the area.

P = 5(8) so

P = 40

We are given that the area of the triangle inside that polygon is 22.022 units squared.  Knowing that the area formula for a triangle is

A=\frac{1}{2}bh we can sub in what we know and solve to find the height:

22.022=\frac{1}{2}(8)h and

22.022 = 4h so

h = 5.5055 units

It just so happens that the height of that triangle is also the apothem of the polygon, so now we have what we need to find the area of the polygon:

A=\frac{1}{2}(5.5055)(40)

which gives us an area of

A = 110.11 units squared.

Here is where we can use what we know about similar figures and the relationships between perimeters and areas.  We will set up a proportion with the smaller polygon info on top and the larger info on bottom.  We know that the larger is 3 times the smaller, so the ratio of smaller to larger is

\frac{s}{l}:\frac{1}{3}

Since perimeter is one-to-one and we know the perimeter of the smaller, we can create a proportion to solve for the perimeter of the larger:

\frac{s}{l}:\frac{1}{3}=\frac{40}{x}

Cross multiply to get that the perimeter is 120 units.  You could also have done this by knowing that if the larger is 3 times the size of the smaller, then the side measure of the larger is 24, and 24 * 5 = 120.  But we used the way we used because now we have a means to find the area of the larger since we know the area of the smaller.

Area exists in a squared-to-squared relationship of the perimeter which is one-to-one.  If the perimeter ratio is 1:3, then the area relationship is

\frac{s}{l}:\frac{1^2}{3^2} which is, simplified:

\frac{s}{l}:\frac{1}{9}

Since we know the area for the smaller, we can sub it into a proportion and cross multiply to solve for the area of the larger.

\frac{s}{l} :\frac{1}{9} =\frac{110.11}{x}

A of the larger is 990.99 units squared

5 0
3 years ago
Whats the area of a circular lamp base that is 20cm in diameter?​
Goryan [66]

Answer:

314.16cm²

Step-by-step explanation:

please mark me as brainliest.hope this helps

3 0
2 years ago
A photograph was enlarge to a width of 15 inches. If the scale factor was 3/2, what was the width of the original photograph?
kati45 [8]
(3/2)W = 15
3W = 30
W = 10 inches
5 0
3 years ago
Suppose a jar contains 20 red marbles and 21 blue marbles. If you reach in the jar and pull out 2 marbles at random at the same
anastassius [24]

Answer:

the probability would be 1-2

7 0
3 years ago
Other questions:
  • The two opposite vertices of a square are (-2,2) and (1,-1). What are the other two vertices of the square?
    15·1 answer
  • Do you know 2+9+4+2 if you do say it
    6·2 answers
  • Please helppp meeee!!
    13·1 answer
  • 18. Josh bought 2.3 pounds of asparagus. If
    14·1 answer
  • Help pls operations with whole numbers
    6·1 answer
  • Which expression is equivalent to that
    9·2 answers
  • How do you graph for the function Y= -x+1
    12·2 answers
  • San had a banner that is made of a square and a semicircle. The square has side lenghts of 10 inches. One side of the square is
    12·1 answer
  • Valencia is solving this number riddle using guess and check. What number multiplied by eight is equal to forty? Valencia must f
    5·2 answers
  • If correct I’ll give brainlest pls help
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!