Answer:
Step-by-step explanation:
Y-5=-2/5(x + 8)
there are 325 7th graders in 12 classes determine the unit rate
Answer:
The answer is 27.08
Step-by-step explanation:
I divided 325 by 12 and after divided it my answer was 27.08. Hope this helped
The hexagon is made from a rectangle and two identical triangles.
13 cm
5 cm
12 cm
Work out the area of the hexagon.
Rosa has $117 in her savings account and $95 in her checking account. Each week she will put $21 into her savings account and $25 into her checking account. Complete the equation that can be used to find the number of weeks, x, until Rosa has the same amount of money in both accounts.
Answer:
It will take Rosa 5 and a half (5.5) weeks to have the same amount of money in both accounts.
Step-by-step explanation:
For this problem, we will have to set two expressions equal to each other. The first expression will represent Rosa's saving account, which already has $117 in it. Every week ([tex]x[/tex]), she adds $21 to her savings account:
[tex]21x+117[/tex]
The second expression will represent Rosa's checking account. Rosa's checking account already has $95 in it. Every week ([tex]x[/tex]), she adds $25 to her checking account:
[tex]25x+95[/tex]
Now that we have our two expressions, set them equal to each other. This is our equation that will be used to find the number of weeks ([tex]x[/tex]) it takes until Rosha has the same amount of money in both accounts:
[tex]21x+117=25x+95[/tex]
Subtract [tex]21x[/tex] from both sides of the equation:
[tex]117=4x+95[/tex]
Subtract [tex]95[/tex] from both sides of the equation:
[tex]22=4x[/tex]
Divide both sides of the equation by the coefficient of [tex]x[/tex], which is [tex]4[/tex]:
[tex]5.5=x[/tex]
[tex]x=5.5[/tex]
So it will take five and a half weeks for her accounts to have the same amount of money.
_
Check your work by substituting [tex]5.5[/tex] into the initial equation:
[tex]21(5.5)+117=25(5.5)+95[/tex]
[tex]115.5+117=137.5+95[/tex]
[tex]232.5=232.5[/tex]
Since the accounts have the same amount, the answer is correct!
Answer:
5.5 weeksStep-by-step explanation:
GivenInitial balance
Savings account = $117Checking account = $95Added amount per week
Savings account = $21Checking account = $25If number of weeks is x, then required equation is
117 + 21x = 95 + 25xSolving for x
25x - 21x = 117 - 954x = 22x = 22/4x = 5.5The answer is 5.5 weeks
If LMN=XYZ, which congruences are true by CPCTC?
Answer: this is how you do it
Step-by-step explanation:
For example if you have a function f(x) = x - 1, then x = 1 is a zero of this function because using it as x gives 1 - 1 = 0. The Riemann Zeta function has some zeros that are easy to find which are of little interest but there are some other ones that are harder to find which is why the are called non-trivial.
Which rational number is also an integer?
A) -82/6
B) -65/13
C) 43/5
D) 70/25
Answer:
B
Step-by-step explanation:
Because all of the other ones are decimals and integers are WHOLE number positive or negative, and B is equal to -5
Hope This Helps
Simplify the expression
12x^-6y^10X3x^7y
Answer:
12xy₁₁x₃
Step-by-step explanation:
can someone help with that?
if x+y=2, calculate:
P=4x (x-3)+4y(y-3)+8xy
Answer:
Step-by-step explanation:
P = 4x(x - 3) + 4y(y - 3) + 8xy
= 4x² - 12x + 4y² - 12y + 8xy
= (4x² + 8xy + 4y²) - (12x + 12y)
= 4(x² + 2xy + y²) - 12(x + y)
= 4(x + y)² - 12(x + y)
x+y =2 ⇒ P = 4.2² - 12.2 = 16 - 24 = -8
Write an equation for a line that is parallel to 9x + 3y = 8 and passes through the point (-1, -4).
Answer:
y = -3x - 7
Step-by-step explanation:
turn into slope-intercept form:
9x + 3y = 8: subtract 9x to isolate y
3y = -9x + 8: divide by three to isolate again
y = -3x + 8/3 (line): Substitute y and x and replace 8/3 with b
-4 = -3(-1) + b: distribute
-4 = 3 +b: isolate b by subtracting 3
-7 = b
Substitute for b in original equation
y = -3x - 7
Answer:
y=-3x-7
Step-by-step explanation:
First you need to change the equation to slope intercept form. so the equation becomes y=-3x+8/3. now you change it point slope, y-y1=m(x-x1), y--4=-3(x--1), which also becomes y+4=-3(x+1), now you multiply. -3 times x and 1 which makes the equation, y+4= -3x+-3, then subtract from each side since its a positive number. so now the equation y= -3x-7
Help pleaseeee!!!?thanks
Answer:it’s c
Step-by-step explanation:
Because it’s 146%
What is the slope of the line on the graph? Enter your answer in the box
Answer:
Step-by-step explanation:
Slope is 6/1
please help me as soon as possible ! I have till 12AM to finish all my work I have a ton please help! :)
Answer: second one, then the 4th one
Step-by-step explanation:
The line shown represents the value y of change June has in her change jar. 1 week ago, she had $2 in the jar. What is an equation of the line in
point-slope form?
6
4
-2
O
2
O A. y - 2 = 4(x +1)
o B. y - 1 = 4(x+2)
OC. y + 2 = -4(X +1)
D. y + 1 = 4(x + 2)
Translate "Fifteen more than a number."
A, 15 + x
B, X + 15
C. X-15
D. 15x
QUICKKK!!! Lance's bowling score was 28 pins more than Jim's score. Lance's bowling score was 205. (a) Write an equation to determine Jim's score (j), (b) What was Jim’s score?
30 points!
Answer:
177
Step-by-step explanation: 205-28=177 ~
30 = -5(6n + 6) how do I show my WORK????
Answer:
- 2
Step-by-step explanation:
Step 1:
30 = - 5 ( 6n + 6 ) Equation
Step 2:
30 = - 30n - 30 Multiply
Step 3:
60 = - 30n Add 30 on both sides
Step 4:
n = 60 ÷ - 30 Divide
Answer:
n = - 2
Hope This Helps :)
Choose the correct graph of the given system of equations. (1 point)
y + 2x = −1
3y − x = 4
Answer:
y=2x-1
y=x+4/3
Step-by-step explanation:
Can anybody help? I don't get what this question means
Answer: B is the only true statement.
Step-by-step explanation:
Help i really need some help for this!!!! Complete the equation so that it has infinitely many solutions.
13(3−z)
Answer:
13(3 - z) = 13(3 - z)
13(3 - z) = 39 - 13z
Step-by-step explanation:
To make the equation have infinitely many solutions, when you simplify, the equation will become z = z
To make this happen, the equation has to be the same on either side of the equal sign. Here are the two options :
13(3 - z) = 13(3 - z)
13(3 - z) = 39 - 13z
You go shopping at a local department store with your friend and cousin. You buy one pair of jeans, four pairs of shorts, and two shirts for $84. Your friend buys two pairs of jeans, one pair of shorts and three shirts for $76. Your cousin buys one pair of jeans, two pairs of shorts and one shirt for $52. Find the cost of one pair of shorts.
Answer:
So, cost of 1 pair of shorts =$12
Step-by-step explanation:
Let cost of 1 pair of jeans =x
Cost 1pair of shorts =y
cost of 1 pair of shirts=z
We can set up equations as
x+4 y+2 z=84
2 x+1 y+3 z=76
x+2 y+z=52
Solve the equations for y.
Take first and second equations multiply first equation by -2 and add it with second equation.
-2 x-8 y-4 z=-168
2 x+1 y+3 z=76
Add them, it gives -7 y-z =-92
Now, take second and third equations, multiply the third equation by -2 then add them together.
2 x +1 y +3 z =76
-2 x-4 y-2 z=-104
Add them together,
-3 y +z =-28
Now, take the -7 y -z =-92 and -3 y +z =-28
Add the equations
-10 y = -120
Divide both sides by -10
y =12.
So, cost of 1 pair of shorts =$12
z=8
Simplify.
4727 + 6V75
Answer:
1+1
Step-by-step explanation:
1. How do the areas of the two shapes compare?
Answer:
we cant really answer cause we cant see the 2 squares
Step-by-step explanation:
A square on a coordinate plane is translated 9 units down and 1 unit to the right. Which function rule describes the translation?
A. T1-9x, Y)
B. T-1-9x. y)
C. T-o, 10, y)
D. T-9,-1X, Y)
Answer:
the answers should be T1, -9(x, y)
A. T1-9(x, Y)
Good luck!
Can all one-variable inequalities be simplified to a two-step inequality?
Next , solve as you would solve any two -step inequality. Since 2 is added to , you can get by itself on one side of the inequality by subtracting 2 from both sides. Then, to get by itself on one side of the inequality, you need to multiply both sides by 2.D
Please?
4. - 3+(-3)=-3-3 True False
Step-by-step explanation:
-3 +(-3)
= -3 -3
True because (+)(-) = -
richard is walking around his neighborhood. if he walks 1/3 mile in 1/6 hour, how fast is richard walking, in miles per hour?
Answer:
2 miles per hours
Step-by-step explanation:
You divide 1/3 mile by 1/6 hour
Use the reciprocal.
1/3 x 6/1 = 2/1
Simplify
2/1 = 2
You can also solve it this way:
If 1/6 hour is 10 minutes, and it takes 10 minutes to walk 1/3 a mile, then it would take 30 minutes to walk a mile.
30 x 2 = 60
Either way, Richard walks 2 miles per hour.
Richard is walking at an average speed of 2 miles per hour which is the correct answer would be option (B).
What is Average speed?Average speed is defined as the ratio of the total distance traveled by a body to the total time taken for the body to reach its destination.
To determine how fast is Richard walking, in miles per hour
We have to calculate the average speed which is the ratio of the total distance traveled by a body to the total time
Total distance traveled by Richard = 1/3 mile
The total time taken = 1/6 hour
Average speed = the total distance / the total time
Average speed = (1/3) / (1/6)
Reciprocal the denominator term, and we get
Average speed = (1/3) × 6
Average speed = 2 miles per hour
Therefore, he is at an average speed of 2 miles per hour
Learn more about the average speed here :
brainly.com/question/12322912
#SPJ2
4x-3=2x+7
HELP PLEASEEE
Answer:
x = 5
Step-by-step explanation:
Given
4x - 3 = 2x + 7 ( subtract 2x from both sides )
2x - 3 = 7 ( add 3 to both sides )
2x = 10 ( divide both sides by 2 )
x = 5
Answer:
x=5
Step-by-step explanation:
you will start by subtracting 2x from 4x then you are left with 2x-3=7. then you will add 3 to 7 that will give you 2x=10, then divide 2 from 10. from there you get x=5.
I need help with this I am giving 60 points
Answer:
<2 ≅<4 with reason of vertical angle theorem.
Step-by-step explanation:
The vertical angle theorem states that two opposite (non-adjacent) angles formed by 2 intersecting lines have equal measure. In this problem, we are given that the angles are vertical angles. So the statement is that <2 ≅<4 with reason of vertical angle theorem.
Need help pls it’s due today
Answer:
the answer is -2
Step-by-step explanation:
LOGIC lol
i’ll try to break it down for u so u can understand a little better.
the horizontal line is X and the vertical line is Y.
if u start in the middle going horizontally to the right u can find X and X will = 2
to find Y u need to start in the middle and count upwards until you find where the lines meet to create a point. Y = 1
X/Y = 2/1 which can simplify to 2
But since the line is going from left to right and going downwards it is negative hope this helped :)
Mrs. Chin paid a 20 percent tip on the bill for lunch.
Total
100%
20%
$2.75
Percents
20%
$2.75
20%
$2.75
20%
20%
$2.75
$2.75
If the tip amount was $2.75, what was the bill for lunch before the tip was added to it?
0 $5.50
$13.75
O $16.50
O $55.00
Answer:$13.75
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
I just took the test
1/3 of 12 = 2/3 of ?
Answer:
I think it's 6
Dhdneoemd
Answer:
6
Step-by-step explanation:
[tex]\frac{1}{3}[/tex] of 12 = [tex]\frac{12}{3}[/tex] = 4
let the number required be n , then
[tex]\frac{2}{3}[/tex] n = 4 ( multiply both sides by 3 to clear the fraction
2n = 12 ( divide both sides by 2 )
n = 6
Thus
[tex]\frac{1}{3}[/tex] of 12 = [tex]\frac{2}{3}[/tex] of 6