if the quotient of three times a number and four is decreased by three, the result is nine. whats the number
Answer :Trevor,
number = x
(3x÷ 4) - 3 = 9
Use a common denominator 4: 3x - 12 = 36
3x = 48
x = 16
Does it fit the original equation?
[(3 x 16) ÷ 4] -3 = (48 ÷ 4) -3 = 12 - 3 = 9
Hope it helps
someone please solve this 3n+9n=-2(7-4n)-(1+n)
Answer:
n= -3Step-by-step explanation:
[tex]3n+9n=-2(7-4n)-(1+n)\\\\\mathrm{Add\:similar\:elements:}\:3n+9n=12n\\\\12n=-2\left(7-4n\right)-\left(1+n\right)\\\\\mathrm{Expand\:}-2\left(7-4n\right)-\left(1+n\right):\quad 7n-15\\\\12n=7n-15\\\\\mathrm{Subtract\:}7n\mathrm{\:from\:both\:sides}\\\\12n-7n=7n-15-7n\\\\Simplify\\\\5n=-15\\\\\mathrm{Divide\:both\:sides\:by\:}5\\\\\frac{5n}{5}=\frac{-15}{5}\\\\Simplify\\\\n=-3[/tex]
Answer:
n=-3
sorry no steps
Here is a system of linear equations:
6x+21y=103
-6x+23y=51
Would you rather use subtraction or addition to solve the system? Explain your reasoning.
Step-by-step explanation:
6x + 21y = 103
-6x + 23y = 51
The signs of the x coefficients are opposite. So adding the equations will eliminate the x terms.
44y = 154
y = 3.5
Combining the equations will remove the x terms because the x coefficients have inverse signs. The solution to the given system of linear equations is x = 4.92 and y = 3.5.
What is the equation?The term "equation" refers to mathematical statements that have at least two terms with variables or integers that are equal.
Here is a system of linear equations:
⇒ 6x + 21y = 103
⇒ -6x + 23y = 51
Inverse signs can be seen in the x coefficients. The x terms will therefore be removed after adding the equations.
⇒ 44y = 154
⇒ y = 3.5
Substitute the value of y = 3.5 in the equation 6x + 21y = 103
⇒ 6x + 21(3.5) = 103
⇒ 6x + 73.50 = 103
⇒ 6x = 103 - 73.50
⇒ 6x = 29.50
⇒ x = 4.92
Learn more about the equation here:
brainly.com/question/10413253
#SPJ2
What is 39,404,000 expressed in scientific notation?
Answer:
3.9404×10^7
Im not sure how to explain it.
If a gold bar has a length of 17.78 cm, a width of 9.208 cm, a height of 4.445 cm, and the density of gold is 19.3 g/cm^3, what is the
mass of the gold bar. Answer with the correct number of significant figures. Use the rounding rules.
A. 1.40x10^4 grams
B. 14 040 grams
C. 14 045.142 grams
D. 14 045 grams
Answer:
17.78×9.208×4.445=727.7275768
D=mass÷volume
mass=density×volume
mass=19.3g/cm3×727,7275768=14045,14223224=14045grams
Simplify 3/100 +33/100, correct to 1 decimal place.
Answer:
Step-by-step explanation:
3/100+33/100=36/100=0.36≈0.4(round to one decimal place)
Write an explicit formula for the sequence.
-20.-12.-4.4
An) = -20n - 8
O A(n) = -20 - 8n
A(n) = -20 + (n - 1)8
An) = n - 8
Answer:
I need help
Step-by-step explanation:
The following value is closest to what number? 292
Shambrekia put down $800 on a used car. She took out a loan to pay off the balance of the cost of the car. Each month she will pay $175. After 9 months how much will she have paid for the car?
Answer:
$1,575
Step-by-step explanation:
C(-3,-1), Q(-2,3)
Find the distance between each pair of points
Answer:
The answer is
[tex] \sqrt{17} \: \: \: or \: \: \: 4.12 \: \: \: \: units[/tex]Step-by-step explanation:
The distance between two points can be found by using the formula
[tex]d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\ [/tex]
where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
C(-3,-1), Q(-2,3)
The distance between them is
[tex] |CQ| = \sqrt{ ({ - 3 + 2})^{2} + ( { - 1 - 3})^{2} } \\ = \sqrt{ ({ - 1})^{2} + ( { - 4})^{2} } \\ = \sqrt{1 + 16} \\ = \sqrt{17} \: \: \: \: \: \: \: \\ = 4.1231...[/tex]
We have the final answer as
[tex] \sqrt{17} \: \: \: or \: \: \: 4.12 \: \: \: \: units[/tex]
Hope this helps you
i need help showing my answer -7/12 + 1/2
Answer -1/12
Step-by-step explanation:
-7/12 + 1/2 cannot be added until you change 1/2 into 6/12.
To change 1/2 to 6/12, you have to multiply 1/2 by 6 because you want the same denominator. Since you can't just make a whole new fraction by changing the denominator, you have to multiply the numerator by 6 as well.
After changing the fraction, you should get -7/12 + 6/12.
now you can just add the numerators and denominators together and get -1/12!
Determine which of the following statements about rigid transformations is false.
Question 5 options:
In a translation, the segments joining points of the pre-image and their images are perpendicular.
In a reflection, the segments joining points of the pre-image and their images are perpendicular to the line of reflection.
In a rotation, the points of the pre-image are always the same distance away from the center of rotation as the corresponding points of the image.
In a reflection, the points of the pre-image are always the same distance away from the line of reflection as the corresponding points of the image.
Answer:
The false statement about rigid transformation is;
In a translation, the segments joining points of the pre-image and their images are perpendicular
Step-by-step explanation:
The direction of a rigid transformation involving a translation can vary from changes in the values of one of the two coordinates of the vertex points in the figure with the same change value for all the vertices or
The translation can also be made by changing the values of both coordinates of the vertex each coordinate having equal value of change which may be different from the value of change of the other coordinate, maintaining the size of the figure.
In the second case, the translation can be in other directions other than vertical or horizontal, such that, the segments joining the points of the pre-image with the corresponding point on the image are parallel.
The false statement about rigid transformation is;
In a translation, the segments joining points of the pre-image and their images are perpendicular
The direction of rigid transformation:It includes a translation that could be varied from changes in the values of one of the two coordinates of the vertex points having the same change value for all the vertices. The translation could also be made via changing the values of both coordinates of the vertex every coordinate that contains the equal value of change.
Learn more about direction here: https://brainly.com/question/21610275
why is knowing math so important
Math is used to help calculate certain things such as taxes and such, but they are mostly important for jobs since certain jobs require knowledge of math. Jobs such as working in a branch of engineer, architecture, etc.
How many protons would make up 9.435 x 10-22 g?
Answer:
Mass of proton (m) = 1.67×10^(-27) kg
Step-by-step explanation:
Mass of proton (m) = 1.67×10^(-27) kg.
Since, 1 kg = 1000 g
Therefore, m = 1.67x10^(-27+3) g = 1.67x10^(-24) g
Let N no. of protons be present in 1 g. Hence, Nxm = 1 g
So, N = 1 / m = 1 / (1.67x10^(-24))
N = 6x10^(23) (approx.)
Exact mass of proton gives N = 6.022 x 10^(23).
That is a very special no. In fact, it is the Avogadro’s constant used frequently in chemistry. Avogadro’s no. is actually the number of atoms in exactly 12 g of C-12 isotope of carbon. Since, the atomic mass of C-12 is 12 u (unified mass), then again the no. of carbon atoms turn out to be N.
Given the following formula, solve for t.
V = u + at.
A. t= a(v – u)
B. t = v-u/a
C. t=v+u/a
D. t =a(v + u)
THIS IS HARD HELP....
Answer: you can google the Four 4’s assignment and there will be several sites and documents giving you all the answers
Step-by-step explanation:
Compare the quantity in Column A with the quantity in Column B. Choose the best
answer.
Column A
The distance from
(-11, 2) to (5, 10)
Column B
The distance from
(0, -8) to (16,0)
O A. The quantity in Column A is greater.
O B. The quantity in Column B is greater.
O C. The two quantities are equal.
O D. The relationship cannot be determined from the information given.
Answer:
option :c is correct..okAnswer:
c
Step-by-step explanation: got it right prommispromise
How do you do #14abc?
Answer:
220 10 4
Step-by-step explanation:
-2x+5=24 I need help!!!
Answer:
[tex]x=-\frac{19}{2}[/tex]
Step-by-step explanation:
hope that was the answer you were looking for :/
Answer:
x = -19/2
Step-by-step explanation:
[tex]-2x+5=24[/tex]
Then subtract 5 from 24
[tex]-2x=19[/tex]
Then divide -2 by 19 to get:
[tex]x = -\frac{19}{2}[/tex]
Hope this helps!
EASY BUNCH OF POINTS & WILL GIVE BRAINLIEST:) Find the distance FG between the points F(2,7) and G(4, -1). Round your answer to the nearest tenth, if necessary. FG=
Answer:
2 between 2 and 4 and 8 between 7 and -1
What is
2
- ---- x times 15
3
If you are asking what 2/3 times 15 is its 10
A rope which is 18.35 centimeters long is cut into 6 pieces of equal length. What is the
length of each piece?
Answer:
3.05
Step-by-step explanation:
if you divide 18.35 by 6 it is 3.05.
Answer:
3.08533333333 continued indefinitely
Step-by-step explanation: you will need to divide 18.35 cm by 6 pieces.
4 1/8 (3x−4)=33
pls find x thank you
Answer:x=3 2/3
Step-by-step explanation:
Answer:
the answer is 23.3
Step-by-step explanation:
An ice cream truck drive truck driver made $23 in one hour. She the spent $35 for gas. What is the difference?
Answer:
$12
Step-by-step explanation:
Step 1:
$35 - $23
Answer:
$12
Hope This Helps :)
Which term can be used in the blank of 36x3−22x2−__ so the greatest common factor of the resulting polynomial is 2x? Select two options. 2 4xy 12x 24 44y
Answer:
4xy and 12x
Step-by-step explanation:
In this question, we are to select which of the options to put into the blank space that will make the greatest common factor of the polynomial 2x. We are to select two options
Now, looking at the blank space, we should understand that , any answer we shall be choosing shall be an answer that contains x alongside the number.
This makes 24 and 44y out of the way.
Now let’s look at 4xy and 12x. Let’s insert them into the blank space;
36x^3-22x^2 - 4xy which gives : 2x(18x^2-11x-2y)
and 36x^3-22x^2-12x = 2x(18x^2-11x-6)
The reason why we will not use 44y and 24 is because 2x is not a factor of either.
Answer:
Answer:4xy and 12x
Step-by-step explanation:
The could both be a product of 2x
which is not a line of symmetry'
Answer:
Please require a picture pls
Step-by-step explanation:
Answer:
when both sides look the same is symmetry
36=q^2 Find the solution to the equation
Answer:
i think its 18
(also if you dont mind can you please help me with my question)
11 times 11 in exponential expression
Answer:
11^2
Step-by-step explanation:
bc there is two eleven it's 11 to the power of two
What is this called? I’m trying to look up a video on how to do these.
y = - 7/2x -4
Answer:
linear equations, only when it is y=(equation with an x
variable)) or x=(equation with an y
variable), usually you tend to graph these.
Given that p(x) is a polynomial in 2 and a € R. If (x – a) is a factor of p(I), then p(a) must be
Select one:
a. negative
b. irrational
C. Zero
d. positive
X+1
If g(x) =
X-2 and h(x) = 4 - X, what is the value of (g•h)(-3)?
8/5
5/2
15/2
18/5
Answer: the correct answer is: 8/5
Step-by-step explanation: just took the quiz.