Answer:
x = -14
Step-by-step explanation:
The first thing you are trying to do is get the x alone. so first you will look at 10 and do the opposite of the sign that you have. So you would take the -10 and make it +10. you would solve -10 + 10 and 32 + 10 because whatever you do to one side you do to the other. -10 +10= 0 and 32+10 = 42. Your equation now is -3x=42. we do not put -3x+0=42 because zero does not have a value. From here we would look at the -3x and do the opposite sign, which means dividing. whenever a number is next to x or any variable it is multiplication. For example, 7x is the same as 7*x. The opposite of multiplication is division. so we would do -3x/-3. We do 42/-3 because whatever we do to one side we do to the other. On the left side we are left with x then you add the equal sign and the quotient of 42/-3.
Answer: x = -14
which of the following numbers are not written in scientific notation
a. 3.45 x 10^-2
b. 34.5 x 10^5
c. 1.05 x 10^-5
Answer:
B
Step-by-step explanation:
There are two digits before the decimal
Which expression shows the sum 9 + 21 rewritten as a product of the GCF and a sum?
O 9(1 + 21)
O 3(3 + 7)
O 3(3 + 21)
O 9(1 + 3)
Answer:
3(3+7)
Step-by-step explanation: you factor out the greatest common multiple. 3 times 3 is 9 and 3 times 7 is 21
can someone help me????????????
Answer: +2
Step-by-step explanation: :)
Chen completed the division problem below. 0.9 StartLongDivisionSymbol 192.6 EndLongDivisionSymbol right arrow 9 StartLongDivisionSymbol 192.6 EndLongDivisionSymbol minus 18 = 12. 12 minus 9 = 36. 36 minus 36 = a remainder of 0 and a quotient of 21.4. What is Chen’s error? He included a 4 in the quotient, which does not belong. He multiplied the dividend by 100 instead of 10. He should have multiplied both numbers by 100. He did not subtract correctly in one of the steps.
i will give the crown to the correct answer please and thank you :)
Answer:
the answer is
He did not subtract correctly in one of the steps. D
step by step explination: just took the test.
put me as branliest
Answer:
He multiplied the dividend by 100 instead of 10.
Step-by-step explanation:
Have a great day!
(Edgeunity quiz)
PLSSSSS!!!!!! HELP ME!!!! I WIL MARK U!!!!!
Answer:
-44
Step-by-step explanation:
You multiply 11 times 2 to the second power then multiply negative 1
Write the statements “If you take away 6 from 6 time a number, you get 60”in the form of equations:.
What is the slope of the line 4x – 2y = 5?
O-4
O-2
0 2
0 4
Answer:
Slope is 4.
Step-by-step explanation:
To find the slope, you can use ¨y=mx+b¨ where m= slope, and b= y intercept.
Hope this helped!
Answer:
m=2
Step-by-step explanation:
4x−2y=5
Rewrite in slope-intercept form.
y=2x-5/2
Using the slope-intercept form, the slope is 2.
m=2
Hope this helps! :)
The unit rate/price is the rate/price per 1 item is this true or false
I need help please the faster the better.
Answer:
(5,-8)
Step-by-step explanation:
You would go to the right then down 8
Answer: plot a point at (0, -8) (1, -5) (2, -2) (-1,-12) and draw a straight line connecting them
Step-by-step explanation: plug in points to the equation and solve
Which set of rational numbers is correctly ordered from least to greatest?
-0.5 -0.4 -0.3
Answer:-0.3 -0.4 -0.5
Step-by-step explanation:mark me as brainliest
help please i’m not sure what the answers are
Answer:
8) TMS
9) TM and MR
10) QMS
What are the solutions of this quadratic equation?
X2– 6x= – 58
Answer:
Solve the rational equation by combining expressions and isolating the variable
X
.
X
=
√
2
(
3
x
−
29
)
X
=
−
√
2
(
3
x
−
29
)
Step-by-step explanation:
Answer:
No real Solutions
Step-by-step explanation:
Step one: The coefficient on -6x is -6. So b= -6
Step two: Add (b/2)^2 to each side. in our case it is 9
x^2-6x+9= -49
Step three: Factor left side
(x-3)^2 = -49
Step four: take the square root
x-3 = ±√-49
Step five: add 3 to both sides
x = 3 ± √-49
So there is no real solutions
Two trains are traveling at constant speeds on different tracks.
Answer:
Train B is traveling faster
Step-by-step explanation:
From the picture, we want to know which train is traveling faster
We can know this by knowing the speed of the trains
Mathematically;
speed = distance/time
Train A
12.5 m in 1 second
speed = 12.5/1 = 12.5 m/s
Train B
100 m in 4 seconds
speed = 100/4 = 25 m/s
So train B is traveling faster
This is because it covered a distance of 100 m in 4 seconds as opposed to train A which covered a distance of 12.5 m
in 1 second
Rewrite 47/9 as a mixed number in lowest terms
Answer: As an improper fraction. (numerator larger than denominator): 47/9 = 47/9
As a mixed number (mixed fraction) (a whole number and a proper fraction, of the same sign): 47/9 = 5 2/9
As a decimal number: 47/9 ≈ 5.222222222222 ≈ 5.22.
As a percentage: 47/9 ≈ 522.22%
sorry for putting so much-
Find the intercepts of the graph given the following equation 4x – 3y = 12
Answer:
y-intercept: -4 or (0, -4)
x-intercept: 3 or (3, 0)
Step-by-step explanation:
4x - 3y = 12
we can convert this to slope-intercept form (y = mx+b) given that m is the slope and b is the y-intercept
4x - 3y = 12
-3y = -4x + 12
y = 4/3x - 4
So the intercept is -4 or (0, -4).
For the x-intercept, we can make the y value 0 to solve for x.
4x - 3y = 12
4x - 3(0) = 12
4x = 12
x = 3
So the x-intercept is 3 or (3, 0).
Solve
12x + 5 = 4x + 37
Answer: 4 is the correct answer
Step-by-step explanation:
12x+5=4x+37
12x-4x=37-5
8x=32
x=32/8
x=4
Answer:
x = 4
Step-by-step explanation:
First you look at the two values of the equation, so the difference between the difference of the two variables is 32, ( 37 - 5 ) then we know that ( 12x - 4x ) 8x . So we know that 8x equals to 32, so ( 32/8 ) equals to x = 4.
Using the Commutative Property
Use the commutative property to create equivalent expressions. Which expressions are equivalent to 227+35+9.82
Check all that apply.
3.5 +2.21 +9.8
0 3+2t +9
D 2.2 +3.5+ 9.81
9.8 +3.5+ 2.21
D 2.2t+ 9.8 +3.5
D 2.2t + 35.98
Answer:
3.5 +2.2t +9.8 and 9.8 + 3.5 + 2.2t and 2.2t + 9.8 + 3.5
Answer:
Option 1, Option 4, and Option 5.
Step-by-step explanation:
So it's 3.5 + 2.2t + 9.8 , 9.8 + 3.5 + 2.2t , 2.2t + 9.8 + 3.5. :)
Which set of ordered pairs represents a function?
A. {(5,8), (-8, 2), (-1, -2),(-1, -6)}
B. {(-3,6),(-2,5), (6,2), (-3,7)}
C. {(-2,-2),(-9, -2), (7,-6), (-7, -5)}
D. {(-4,-4),(-8, -1),(4,5), (4,-4)}
Answer:
C
Step-by-step explanation:
each input has exactly one out put... brainliest plssss
Write an equation of the line in STANDARD FORM with a slope of 3 and passes through the point (6,-2) in standard form using the formula
y-y1 = m (x-x1) please!
The formula has been given already, just substitute the values.
m is the slope = 3
y1 = -2
x1 = 6
y - (-2) = m (x - (6))
y + 2 = 3(x - 6)
GIVING BRAINLIEST!!! PRETTY SIMPLE QUESTION!!!
Mei subscribed to a magazine at a rate of $24 for 12 issues. When she placed her order, Mei used a coupon that added 3 free bonus issues to her subscription. How did the coupon impact the cost per issue of Mei’s subscription?
O The coupon lowered the cost per issue by $0.40.
O The coupon lowered the cost per issue by $1.38.
O The coupon raised the cost per issue by $0.13.
O The coupon raised the cost per issue by $0.67.
Answer:
A
Step-by-step explanation:
Originally, Mei pays $24 for 12 issues.
Therefore, the cost per issue is:
[tex]c=\frac{\$24}{12\text{ issue}}=\$2\text{ per issue}[/tex]
With the coupon, Mei pays the same amount of $24 but for 15 issues.
So, the cost per issue now is:
[tex]c=\frac{\$24}{15\text{ issues}}=\$1.60\text{ per issue}[/tex]
Therefore, the coupon lowered the price of the issue by $0.40.
Our answer is A.
Answer: The coupon lowered the cost per issue by $0.40.
Original price of issue: $2
24 ÷ 12 = 2
Mei added 3 more issues, but she still pays $24.
The answer is A.
Hope this helps you!
Find the measure of x in each figure. (Look at photo)
Answer:
x = 20
Step-by-step explanation:
these angles are supplementary, which means they add up to 180°
using this, you can make the following equation:
6x + 60 = 180
subtract 60 from both sides of the equation
6x + 60 - 60 = 180 - 60
6x = 120
divide both sides of the equation by 6
6x/6 = 120/6
x = 20
Which expression is equivalent to -6(-2/3 +2x)?
A -4-12x
B -4+2x
C 4- 12x
D 4+ 12x
40 pts
Answer:
C
Step-by-step explanation:
How to solve 3(x + 1) − (3x + 2)
Answer:
Step-by-step explanation:
3(x + 1) − (3x + 2)
we will expand the first bracket:
3x+3-3x-2
3x and -3x cancels
3-2=1
Answer:
1
Step-by-step explanation:
3x+3+−3x+−2
=(3x+−3x)+(3+−2)
=1
Renee hiked for 6
miles. After resting. Renee hiked back along the same route for 5
miles. How many more miles does Renee need to hike to return to the place where she
started? Represent your answer as a simplified mixed number, if necessary.
Renee still needs to hike
miles
Answer:
1 mile
Step-by-step explanation:
Renee hikd 6 miles, then went back 5. 6-5=1
60% of the students in Mr. Vick's class have computers at home. If 21 students in his class have computers at home, how many students are there in his class?
Answer:
There are 35 students in his class.
Step-by-step explanation:
1. Create a proportion: 60/100=21/x
2. Cross multiply, or not (I prefer to cross multiply). 60x=2100
3. Solve the equation: x=35.
Answer: There are 35 students in his class, 14 people going in school, 21 student online.
Solve the following system by substitution. 7x + 2y = 16 –21x – 6y = 24 What is the solution ?
Answer:
no solution
Step-by-step explanation:
x=(16-2y)/7
-21*(16-2y)/7-6y=24
-3(16-2y)-6y
-48+6y-6y=24
-48=24
you can't solve for the variables
There is no solution for given system of equations.
System of equations :The given equations are,
[tex]7x+2y=16\\\\x=\frac{16-2y}{7}[/tex]
Another equation is, [tex]-21x-6y=24[/tex]
Substitute value of x in above equation.
[tex]-21(\frac{16-2y}{7} )-6y=24\\\\-48+6y-6y=24\\\\-48\neq 24[/tex]
Thus, there is no solution for given system of equations.
Learn more about the system of equations here:
https://brainly.com/question/13729904
Multiply. Enter the product in simplest form.
3/4 x 2
Answer:
3/2 = 1 1/2
Step-by-step explanation:
3/4 * 2
Make 2 a fraction
3/4 * 2/1
Rewrite
3/1 * 2/4
3/1 * 1/2
Multiply
(3*1)/(2*1/)
3/2
Changing from a fraction to a mixed number
1 1/2
Which of the following equations represents the graph shown
F(x)=x + 1
F(x)=2/3x
F(x)=3/2x
f(x) = 3/2x
we know this cause if u use the rise/run rule which is used to find slope, it goes up 3 and over 2 so it's positive 3/2 and the y intercept is 0 so u don't have to say +0
Answer:
the correct answer is C. f(x)=3/2x
Step-by-step explanation:
0dysseyware
Movie tickets now cost seven dollars for adults over six years old. They cost six dollars a couple of years ago. What was the percent of increase?
Answer:
i think 3%
Step-by-step explanation:
In parallelogram RSTV, diagonals RT and VS intersect at Q. If RQ = 5x + 10 , QT = 20 and QS = 3x+ y and QV = 30 . Find x and y