Answer :
Sum = 2x-7 + (-2x) and equivalent expression = -7
Step-by-step explanation:
First number is (2x-7) and other number is opposite of 2x i.e. (-2x).
We need to write the sum of 2x - 7 and the opposite of 2x
Opposite of 2x is (-2x)
Sum means to add the number :
2x-7 + (-2x)
Removing parentheses,
2x-7 - 2x
Taking like terms together,
2x-2x-7= 0-7
= -7
Hence, the answer is -7.
What are the solutions to 7x^2 + 10x -3 = x^2 + 3x?
Answer:
x=(1)/(3),-(3)/(2)
Step-by-step explanation:
Answer:
(- 3/2, 1/3)
Step-by-step explanation:
7x^2+10x-3=x^2+3x
7x^2+10x-3-x^2-3x=0
6x^2+7x-3=0
6x^2+9x-2x-3=0
3x x (2x+3)-(2x+3)=0
(2x+3)x(3x-1)=0
2x+3=0
3x-1=0
x1=- 3/2
x2= 1/3
The tip for excellent service in a restaurant is $25 for every $100 of the meal. What is the total bill (cost of meal plus tip) for a $75 meal?
A. $25
B. $93.75
C. $125
D. $100
-20 > -2x + 4 inequality
Step-by-step explanation:
-20 > -2x + 4
2x > 4 + 20
2x > 24
x > 12
or
x ∈ 《12 , + ∞》
-20 > -2x + 4
-20 -4 > -2x
-24 > -2x
-24/-2 < x <inequality changes when you divide by a -ve no. >
12 < x
Challenge A large university accepts 40% of the students who apply. Of the students the university
accepts, 45% actually enroll. If 20,000 students apply, how many actually enroll?
students would actually enroll. (Type a whole number.)
Plzzzz help
Answer:
3,500
Step-by-step explanation:
find the slope of the line created from the points on the table. A. 1/7 B. -7 C. 2/3 D. - 3
Table:
x y
2 14
3 7
4 0
5 -7
Answer:
B. -7
Step-by-step explanation:
Formula to find slope is (y2-y1) / (x2-x1)
Here we have 4 points to choose from, but we only need 2. I will use the first 2 points.
The y2 is 7, the y1 is 14, the x2 is 3, the x1 is 2.
Substitute these numbers into the formula.
(7-14) / (3-2)
^ This is basically -7/1, or -7.
You earn $28 for washing 4 cars. How much do you earn for washing 3 cars?
Answer:
21 dollars
Step-by-step explanation:
Answer:
$21
Step-by-step explanation:
Make the original statement into a ratio.
$28/4
Simplify the fraction above.
$28/4 = 7
So, you earn $7 per car you wash.
As a result, you multiply $7 by the number of cars the question is asking you for. In this case it is 3 cars.
So, you multiply 7 x 3
7 x 3 = 21
Therefore, you will earn $21 for washing 3 cars.
What is the slope of the line shown below?
(3,9)
(-4,2)
Answer:
the slope of the line shown below is 1.
Tess studied for 2/3 of an hour on Monday and 1 1/2 hours on Tuesday. How much more time did she spend studying on Tuesday than on Monday?
Answer:
she spent 2 1\6 studying more on tuesday because you got to add
A triangle on a coordinate plane is translated according to the rule T-3,56%, y). Which is another way to write this
rule?
(x, y) - (x-3, y + 5)
(x, y) - (x-3, y-5)
(x, y) - (x + 3. y-5)
(x, y) - (x + 3, y + 5)
Given:
Consider the rule of translation of a triangle is [tex]T_{(-3,5)}(x,y)[/tex].
To find:
The another way to write this rule.
Solution:
We have, the rule of translation [tex]T_{(-3,5)}(x,y)[/tex].
We know that [tex]T_{(a,b)}(x,y)[/tex] is defined as
[tex](x,y)\to (x+a,y+b)[/tex]
So, [tex]T_{(-3,5)}(x,y)[/tex] can be defined as
[tex](x,y)\to (x+(-3),y+(5))[/tex]
[tex](x,y)\to (x-3,y+5)[/tex]
It means, the triangle is translated 3 units left and 5 units up.
Therefore, the correct option is A.
Answer:
A
Step-by-step explanation:
Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong.
Answer:
6.65 liters
Step-by-step explanation:
.95 liters multiplied by 7 equals
ANSWER QUICK HANKS I WILL GIVE BRAINLIEST
Answer:
2 2/9
Step-by-step explanation:
Answer: 2 2/9
Step-by-step explanation:
16/9÷4/5=80/36 simp 2 2/9
Solve the following system of equations:
x + 3y = −4
x + 5y = −6
(1, 1)
(−1, 1)
(1, −1)
(−1, −1)
Answer:
(-1,-1)
thats where they intersect
and thats the answer
Step-by-step explanation:
plz give brainlyest
Answer:
(-1,-1)
Step-by-step explanation:
I need help on math
Answer:
its the first one
Step-by-step explanation:
i have no step by step explanation
Write on equation if the slope is 3/4
and the y-intercept is -4,
Answer:
thw abswer os tywentr yaxel
Step-by-step explanation:
PLEASE PLEASE HELP I STG IVE BEEN ASKING THE SAME QUESTIONS FOR SO LONG AND NOONES ANSWERING ITS DUE SOON im just gonna fail tbh
Answer:
3) 5/2
Step-by-step explanation:
5x - 2y = 20
(First, put it in slope intercept form: y = mx + b).
5x - 2y - 5x = 20 - 5x --> Subtracted 5x on both sides of the equation
- 2y = -5x + 20 --> Simplified
-2y/-2 = (-5x + 20)/-2 --> Divided by -2 on both sides
y = 2.5x - 10 --> Simplified
Since formula is, y = mx + b, then:
m (slope): 2.5
b (y-intercept): -10
Therefore, the answer is 3) 5/2
Hope this helped! <3
Let's solve for y.
5x − 2y = 20
Step 1: Add -5x to both sides.
5x−2y+−5x=20+−5x
−2y=−5x+20
Step 2: Divide both sides by -2.
−2y/−2 = −5x + 20/−2
y = 5/2x − 10
Answer:
y = 5/2x − 10
Slope = x, therefore, the slope = 5/2.
PLS HELP WILL GIVE BRAINLIEST
Answer:
Step-by-step explanation:
For number 1.
If x = -2.
y = 4x + 3 = 4(-2) + 3 = -8 + 3 = -5
If x = 3
y = 4x + 3 = 4(3) + 3 = 12 + 3 = 15
If x = -4
y = 4x + 3 = 4(-4) + 3 = -16 + 3 = -13
If x = -5
y = 4x + 3 = 4(-5) + 3 = -20 + 3 = -17
If x = 5
y = 4(x) + 3 = 4(5) + 3 = 20 + 3 = 23
For number 2.
If x = -2
[tex]y = x^{2} + 4 + 2x = (-2)^{2} + 4 + 2(-2) = 4 + 4 - 4 = 4[/tex]
If x = 3
[tex]y = x^{2} + 4 + 2x = (3)^{2} + 4 + 2(3) = 9 + 4 + 6 = 19[/tex]
If x = -3
[tex]y = x^{2} + 4 + 2x = (-3)^{2} + 4 + 2(-3) = 9 + 4 - 6 = 7[/tex]
If x = 4
[tex]y = x^{2} + 4 + 2x = (4)^{2} + 4 + 2(4) = 16 + 4 + 8 = 28[/tex]
If x = -4
[tex]y = x^{2} + 4 + 2x = (-4)^{2} + 4 + 2(-4) = 16 + 4 -8 = 12[/tex]
If a new surfboard in North Carolina costs $320 and the sales tax is 4.75%, what
was the total cost of the surfboard?
$335.20
$304.80
$321.25
$342.40
please help me plss
Which expression is equivalent to five ninths?
( A ) 5 ÷ 9
( B ) 9 ÷ 5
( C ) 5 − 9
( D ) 9 − 5
Answer:
A) 5÷9
Step-by-step explanation:
As, 5 is a whole number
And when the number ends with "ths" it is always the denominator
So here it is ninths so 9 will be in the denominator
Ben deposited $650 from his pressure washing business into a savings account. The simple interest rate paid by the bank is 3.5%. If Ben makes no deposits or withdrawals, how much interest will he earn in 4 years?
9514 1404 393
Answer:
$91
Step-by-step explanation:
The amount of interest earned is given by the formula ...
I = Prt
where P is the invested amount at rate r for t years.
Filling in the given values, we find the interest to be ...
I = $650·0.035·4 = $91
Ben will earn $91 interest in 4 years.
please help me!!!!!! asap
Answer:
(0,0)
Step-by-step:
What is the vertex of the function defined as
g(x) = f(x – 5) + 3?
Answer:
f=gx−3/x−5
Step-by-step explanation:
Step 1: Flip the equation.
fx−5f+3=gx
Step 2: Add -3 to both sides.
fx−5f+3+−3=gx+−3
fx−5f=gx−3
Step 3: Factor out variable f.
f(x−5)=gx−3
Step 4: Divide both sides by x-5.
f(x−5)/x−5=gx−3/x−5
What is the value of the function at x=3
Answer:
4
Step-by-step explanation:
Since the line of the function is passing through the point (3, 4).
Here x = 3 and y = 4
So the value of the function at x=3 is 4.
Enter an inequality that represents the graph in the box. Please help!!
A store sells a package of 25 trading hearts for $5.25 use pencil and paper explain how you can tell that the unit price per card is less than $1 what is the unit price per card.
Answer:
Unitary cost per card= $0.21
Step-by-step explanation:
Giving the following information:
Number of cards per packecge= 25
Total cost per package= $5.25
To calculate the unitary cost of each card, we need to use the following formula:
Unitary cost per card= total cost / number of cards per package
Unitary cost per card= 5.25 / 25
Unitary cost per card= $0.21
Solve for x:
7x = 105
Answer:
X=15
Explanation: You have no like terms to combine and are at the last step of the algebraic equation. So, you would divide 7 on both sides. 7 by 7 cancels it out and 105 divided by 7 equals 15. Hope this helps ^-^.
The solution to the equation 7x = 105 is x = 15.
We have the equation: 7x= 105
To solve for x in the equation 7x = 105, we need to isolate x on one side of the equation.
Divide both sides of the equation by 7:
(7x)/7 = 105/7
Simplifying:
x = 15
Therefore, the solution to the equation 7x = 105 is x = 15.
Learn more about Equation here:
https://brainly.com/question/29538993
#SPJ6
Andres has $7 he needs $50 to buy a skateboard each week his grandmother pay him $4 to complete some chores
Answer:
she has to give him 4 dollars each week for 11 weeks since he already has 7 dollars.
Step-by-step explanation:
4 x 11 = 44 +7 = 51 so now he had enough for a skateboard.
Solve the inequality. Please help answer needed fast!! Will give BRAINIEST ANSWER 10 POINTS!!!
Answer:
lol
edited: x is negative
Step-by-step explanation:
Find the circumcenter of the triangle.
(-1, 1)
(4,-2)
(-1, -2)
у+ 4 = -4(х+2) what is this in standard form?
Answer:
4x + y = -12
Step-by-step explanation:
Standard form is Ax + By = C
First, distribute the -4:
у + 4 = -4(х + 2)
y + 4 = -4x - 8
Subtract 4 from both sides:
y = -4x - 12
Add 4x to both sides:
4x + y = -12
So, the standard form equation is 4x + y = -12
What is the value of -16 +9?
Answer
the answer is -7
Step-by-step explanation: −(16−9) =-7