Answers
Second, you subtract 3 from both sides of the equation
Last, you would multiply both sides of the equation by 2
It would look like this.....
-1/2x+3=-x+7
1/2x+3=7
1/2x=4
2*(1/2)=(2)*4
x=8
We're simply just trying to get "x" by itself.
So, in order to do this, we must move anything that doesn't have "x" in it to the other side.
SO, subtract 3 from both sides.
-1/2x = -x + 7 - 3
Then, add x to both sides.
-1/2x + x = 7 - 3
Then, simplify.
1/2x = 4
Multiply both sides by 2.
2 · 1/2x = 4 · 2
Simplify.
x = 8
~Hope I helped!~
Related Questions
what would 3/4 - 3/4 be?
Answers
So, the answer is 0.
Hope this helped!
Find the opposite and reciprocal of -1.8.
Answers
the reciprocal of -1.8 is [tex]\frac{1}{-1.8}[/tex] or [tex]\frac{-1}{1.8}[/tex]
the oposite reciprocal would be [tex]\frac{1}{1.8}[/tex]
What is the perimeter of a square with an area of 144 square inches?
Answers
Since we know a square has sides of equal length, and to find the area of a square you square one of the side lengths, find the square root of 144.
The square root of 144 is 12.
So the means each side length is 12.
A perimeter is the distance around the square, or all of the side lengths added together.
4 sides on a square, each length is 12...
12 x 4 = 48
The perimeter is 48
Hope this helps! :)
Kristen bought 2 candy bars for $1.29 each and a soda for$1.99. She had to pay $0.38 in tax. How much was her bill?
Answers
Answer:
$4.95
Step-by-step explanation:
1.29 * 2 = 2.58 + 1.99 = 4.57
4.57 + .38 = 4.95
If a number is rational then it must be a whole number true or false
Answers
Factor this polynomial using the GCF: 3xy^2 + 3xy^2 - 3xy
3xy(y + x - 1)
-3xy(y + x + 1)
3x(y2 + x - 1)
3x^2(y2 + 1 - 1)
Answers
3xy(y + x - 1) <==
Community gym charges a $50 membership fee and a $55 monthly fee. Workout gym charges a $200 membership fee and a $45 monthly fee. After how many months will the total amount of money paid to both gyms be the same? What will the amount be?
Answers
If a system of linear equations has the unique solution (2, −3), then its graph consists of what?
parallel lines
lines that intersect at a single point
identical lines
a y-intercept at −3
Answers
Answer: B - lines that intersect at a single point
Answer:
Answer: B - lines that intersect at a single point
Step-by-step explanation:
glad i helped
What is the solution to the following system of linear equations?
{4x - y = -6
{x - 2y = -5
Please explain how you solved!
Answers
Final answer:
The solution to the system of linear equations is x = -1, y = 2
Explanation:
To solve the system of linear equations:
4x - y = -6
x - 2y = -5
We can use the method of substitution or elimination to find the solution.
Let's use the elimination method. We can multiply the second equation by 4 to make the coefficients of x in both equations the same.
4(x - 2y) = 4(-5)
4x - 8y = -20
Now, we can subtract the second equation from the first equation to eliminate x.
(4x - y) - (4x - 8y) = (-6) - (-20)
-y + 8y = 14
7y = 14
y = 2
Substituting y = 2 back into the first equation:
4x - 2 = -6
4x = -4
x = -1
The solution to the system of linear equations is x = -1, y = 2
what is another name for BD
Answers
Answer:
BD = DB
Step-by-step explanation:
Great question, it is always good to ask questions to get rid of any doubts that you may be having,
Assuming I am understanding the question correctly and assuming that we are talking about line segment. Line segments can be spelled or represented in any direction backwards or forwards. In this case we are talking about a line segment called BD therefore it can also be referred to as DB.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
what is the algebraic expression for the following word phrase: the quotient of 6 and the sum of 5 and y? A: 6/5-y B: 6/5+y C:6(5+y) D: 6/5 + 6y
Answers
Its B though i would have wriiten it as 6/(5+y) to avoid ambiguity
The algebraic expression for the word phrase is;
⇒ 6/5+y
Option B is true.
Here,
The word phrase is;
''The quotient of 6 and the sum of 5 and y''.
We have to find the algebraic expression.
What is Mathematical expression?
The combination of numbers and variables by using operations addition, subtraction, multiplication and division is called Mathematical expression.
Now,
The word phrase is;
''The quotient of 6 and the sum of 5 and y''.
Quotient means fraction and sum of 5 and y is 5 + y.
Hence, The algebraic expression is;
⇒ 6 / 5+y
Therefore, The algebraic expression for the word phrase is;
⇒ 6/5+y
Option B is true.
Learn more about the mathematical expression visit:
https://brainly.com/question/1852123
#SPJ2
Can someone help me with 16 and 20? If you’re supposed to write a contrapositive and inverse, but the word not is already in the statement, what do you do?
Answers
The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 3030 hours and the median is 26.226.2 hours. twenty-four of the families in the sample turned on the television for 1515 hours or less for the week. the 11th11th percentile of the data is 1515 hours. step 2 of 5 : approximately how many families are in the sample? round your answer to the nearest integer.
Answers
Marks canoes rents for $20 plus $35 per hour you do not want to spend more than $1.50.for how many hours can you afford to rent the canoe
Answers
$130/35=3.7 hours but since he can’t spend over that amount it would be 3 hours
Have a blessed day/night.
A moving company charges a $2,000 fee plus $100 per hour. Another moving company charges an $1,800 fee plus $150 per hour. How long is a job for which the two companies' costs are the same?
Answers
The costs of two moving companies are the same for a job that lasts 4 hours.
To find out how long a job must last for the two companies' costs to be the same, we need to set up an equation where both company costs are equal and solve for the time variable, which I will denote as 't' hours.
The first moving company's cost can be represented as:$2,000 + $100 x t.
The second moving company's cost can be represented as: $1,800 + $150 x t.
To find the time when both costs are the same, we set the two expressions equal to each other:
$2,000 + $100t = $1,800 + $150t
Now, we need to solve for 't' by subtracting $100t from both sides and subtracting $1,800 from both sides:
$200 = $50t
Divide both sides by $50 to isolate 't':
t = 4 hours
So, the two companies would have the same cost for a 4-hour job.
If a function f(x) is the temperature in degrees as a function of time in minutes. then the function f'(x) is
Answers
In the context of a function representing temperature over time, the derivative f'(x) indicates the rate of change of the temperature with respect to time.
If a function f(x) represents the temperature in degrees as a function of time in minutes, the function f'(x) represents the rate of change of temperature with respect to time. This implies that if you have the temperature reading from a thermometer at different times, f'(x) tells you how quickly the temperature is rising or falling at any given moment. The concept of the derivative as the rate of change applies to many types of functions beyond just temperature over time.
5/16t=-9
Plz help me ASAP and show all of the steps that you did! PLEASE HELP!!! :) 10 POINTS!!!!!
Answers
If that assumption is correct, then we do two things to solve for t. First, we multiply both sides by 16. This undoes the division of 16 on the left side
[tex]\frac{5}{16}t = -9[/tex]
[tex]16*\frac{5}{16}t = 16*(-9)[/tex]
[tex]5t = -144[/tex]
-------------------------------
Then we divide both sides by 5 to undo the multiplication of 5 (note: 5t means 5*t or "5 times t")
[tex]5t = -144[/tex]
[tex]\frac{5t}{5} = \frac{-144}{5}[/tex]
[tex]t = -\frac{144}{5}[/tex]
-------------------------------
So here's what all the steps look like:
[tex]\frac{5}{16}t = -9[/tex]
[tex]16*\frac{5}{16}t = 16*(-9)[/tex]
[tex]5t = -144[/tex]
[tex]\frac{5t}{5} = \frac{-144}{5}[/tex]
[tex]t = -\frac{144}{5}[/tex]
note: -144/5 converts to the decimal value of -28.8 so t = -144/5 is the same as t = -28.8
The length of a rectangle is twice its width. if the perimeter of the rectangle is 54 ft , find its length and width.
Answers
2(2w) + 2w = 54.
4w+2w = 54
6w=54.
w=9
So length equals twice that...I think you can solve that on your own. xD
Write the equation of the line that is perpendicular to 5x+8y=16 and passes through (-5,7).
Answers
Slope Intercept form (y=mx + b), m=slope, b=y-intercept
5x + 8y = 16 Subtract 5x from both sides
8y=-5x + 16 Divide both sides by 8
y= (-5/8)x + 2
This is our line in slope-intercept form. What will the slope be of a line that is perpendicular to this one? It will be the opposite inverse of the slope of our equation. The opposite inverse means flipping the numerator and denominator, and multiplying by negative one.
Our slope = -5/8, so the opposite inverse is 8/5.
The slope of our perpendicular line will be 8/5
In slope intercept form, our line will be
y=(8/5)x + b
We know it passes through the point (-5,7), so we can plug in -5 for x and 7 for y in order to find b:
7 = (8/5) * -5 + b
7 = 8 *-1 + b Add 8 to both sides
15 = b
Plugging in b, we can get our general function in slope-intercept form:
y= (8/5)x + 15
Select all of the following that are statements. The sun comes up in the east. He is six years old. The moon is made of green cheese. Do well in math. 3x + 4 = 17 Open the door. 7 x 6 = 42
Answers
Which statement is true about the line passing through points A and B?
A. The line has a finite length that can be measured.
B. There is only one way to name the line.
C. The line has infinitely many points.
D. There are only two points on the entire line.
Answers
What is an angle that is congruent to bgd?
Answers
What is the area of a triangle whose vertices are
R(−4, 2),S(1, 2), and T(−5, −4)?
Enter your answer in the box
Answers
15 square units.
EXPLANATION
This triangle has one of its height(altitudes) falling outside the triangle.
We determine the base using absolute value method. This is because the coordinates of [tex]R(-4,2)[/tex] and [tex]S(1,2)[/tex] tell us that this line is horizontal. The y-values are constant.
Therefore [tex]|RS|=|1--4|[/tex]
[tex]\Rightarrow |RS|=|1+4|[/tex]
[tex]\Rightarrow |RS|=|5|[/tex]
[tex]\Rightarrow |RS|=5[/tex]
Also
The triangle is bounded between [tex]y=2[/tex] and [tex]y=-4[/tex].
Therefore the vertical height of interest,
[tex]|RT|=|-4-2|[/tex]
[tex]|RT|=|-6|[/tex]
[tex]|RT|=6[/tex]
We can now find the area using the formula
[tex]Area=\frac{1}{2}base\times height[/tex]
[tex]Area=\frac{1}{2}\times6 \times 5[/tex]
[tex]Area=3 \times 5[/tex]
[tex]Area=15[/tex] square units
what is the measure of <DCF
Answers
Answer:
The measure of angle DCF is 129 degrees.
Step-by-step explanation:
Angle DCF is the sum of angle DCE plus angle ECF.
This is because, DCF is the main angle and DCE and ECF are its two parts.
Hence, the measure of angle DCF will be = [tex]75+54=129[/tex] degrees.
The answer is :
The measure of angle DCF is 129 degrees.
what is cos of negative pi/3?
what is sin of negative pi/3?
Answers
[tex]$\cos(-\frac{\pi}{3})=\cos(\frac{\pi}{3})=\frac{1}{2} [/tex]
and sine is odd function, so:
[tex]$\sin(-\frac{\pi}{3})=-\sin(\frac{\pi}{3})=-\frac{\sqrt{3}}{2} [/tex]
Add. Write your answer in simplest form. 3/5 + 5/8
Answers
Since they both have different denominators (bottom numbers), then we must find the GCD (greatest common denominator).
What can be divided into 5 AND 8? 40!
How many times can 40 be divided into 5? 8 times!
How many times can 40 be divided into 8? 5 times!
So, you take that number and multiply it by the numerator (top number) and you get your new yet equivalent fraction.
3/5 turns into 24/40 & 5/8 turns into 25/40
So, our new question looks like this :
24/40 + 25/40
Since both of these fractions have the same denominator (bottom number), you can simply add the top numbers together! :)
24 + 25 = 49
So, our answer to 3/5 + 5/8 = 49/40
Turn this into a mixed number.
49/40 = 1 9/40
So, your FINAL ANSWER is 1 9/40
~Hope I helped!~
Find the sum of 2x 2 + 3x - 4, 8 - 3x, and -5x 2 + 2
Answers
(2x² -5x²)+(3x-3x)+(-4+8+2)
-3x+6
Answer:
The answer is -3x^2+6
Is the product of two integers positive negative or zero how can you tell?
Answers
If one integer’s polarity is different from the other (one is positive and the other is negative) then the product will be negative.
Write each number as the product of its prime factors
1.) 76
2.) 35
3.)36
4.) 150
5.)180
6.) 520
please help i have 30 mins to get these answered!! :(
Answers
2) 5x7
3) 2x2x3x3
4) 2x3x5x5
5) 2x2x3x3x5
6) 2x2x2x5x13
Find a cubic function with the given zeros. Square root of two., - Square root of two., -2 A. f(x) = x^3 + 2x^2 - 2x + 4 B. f(x) = x^3 + 2x^2 + 2x - 4 C. f(x) = x^3 - 2x^2 - 2x - 4 D. f(x) = x^3 + 2x^2 - 2x - 4
Answers
Answer D
[tex](x- \sqrt{2} )*(x+ \sqrt{2} )*(x+2)\\\\ =(x^2-2)(x+2)\\\\ =x^3+2x^2-2x-4\\\\ [/tex]