Answers
Answer: The number is 14 , look into the steps for more explanations.
Step-by-step explanation:
Twice the sum of a number and seven is three times the number .
in this case we will represent that number by the variable x.
The sum of x and 7 is x+7
Twice that will be 2(x +7)
That has to equation three times the number which will make it
2(x+7) = 3x Now solve for x to find the number by distributing
2x + 14 = 3x Subtract 2x from both sides
2x -2x
14 = 1x Divide both sides by 1
x = 14
Related Questions
Riley used this graph to compare two movie-rental plans.
Choose the three statements that are true about the graph.
Answers
Answer:
The 3 statements that are correct are:
1. "Plan A offers fewer movies than Plan B for monthly costs greater than 20$"
2. "The two plans cost the same for 10 movies per month"
3. "The two plans offer the same number of movies for 20$ a month."
Complete the equation of the line whose y-intercept is(0,5) and slope is -9.
Answers
Answer:
y=-9x+5
Step-by-step explanation:
48/72 and 6/9 propotional or not proportional
Answers
Answer:
Yes they are.
Step-by-step explanation:
Because both equal 6/9 I think
Answer:
proportional
Step-by-step explanation:
6/9 × 8/8 = 48/72
Mia buys ink at the office supply store for a business. She buys 3 printer cartridges, and the sales tax is 7%.
Write an expression to represent the total cost of ink supplies in two different ways. Let c represent the cost of a printer cartridge.
Answers
Answer:
3[c(0.07)]+c=? [3(c)]1.07=?
Step-by-step explanation:
The expression that is used to represent the total cost of ink supplies is 3c + 3c(0.07) and 3c(1.07).
Given that,
Mia purchased 3 printer cartridges.The sales tax is 7%.Here c means the cost of the printer cartridge.Based on the above information, the calculation is as follows:
= 3c + 3c(0.07)
And
3c(1.07)
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A line is rotated. Which of these could be the results?
Answers
A line is a continuous segment in both directions. The rest of the answers are not technically lines and the last answer is a hyperbolic graph and not showing rotation.
The rotation of line will result in the graph A
What is Rotation?The measure of the amount a figure is rotated about the center of rotation is called the angle of rotation. The angle of rotation is usually measured in degrees. We specify the degree measure and direction of a rotation.
90° clockwise rotation: (x,y) becomes (y,-x)
90° counterclockwise rotation: (x,y) becomes (-y,x)
180° clockwise and counterclockwise rotation: (x, y) becomes (-x,-y)
270° clockwise rotation: (x,y) becomes (-y,x)
270° counterclockwise rotation: (x,y) becomes (y,-x)
Given data ,
Let the line be represented as m
Now , the line m is depicted on the graph
And , when a line is rotated in a plane, the possible results are:
A rotation of 0 degrees: The line stays in its original position.
A rotation of 180 degrees: The line rotates half way around and ends up pointing in the opposite direction.
A rotation of any angle between 0 and 180 degrees: The line rotates by that angle, either clockwise or counterclockwise, depending on the direction of the rotation.
Hence , the rotation of line is solved and is graph A
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Last week, Akira spent 5 hours doing homework. Brendan did homework for 3/4 as many
hours as Akira did. How many hours did Brendan spend doing homework?
Write your answer as a fraction or as a whole or mixed number.
hours
Submit
Answers
Answer:
3 hours 45 minutes.
Step-by-step explanation: 5 hours is 300 minutes. 3/4 of 300 is 225 minutes. 225 minutes is 3 hours 45 minutes. BAM
Also brainly would be great
which ratio is the simplest form of 42:28 ?
Answers
Answer:
3 :2
Step-by-step explanation:
hope this helps
Answer:
3:2
Step-by-step explanation:
42:28 = 21:14 = 3:2
To figure this out, I divided both sides by two and then by three. I just kept simplifying until I couldn't simplify any more.
Ann is a professional photographer. She has a photo 8cm long and 6cm wide. A customer wants a print of the photo. The print is to be similar to the original, but have half the area of the original. Ann plans to reduce the length and width of the photo by the same amount. What are the dimensions of the print? (Show work)
Answers
Answer: 6 cm by 4 cm
Step-by-step explanation:
Half of 48 = 24
(8-x)(6-x) = 24
x^2 - 14x + 24 = 0
FACTOR THE PROBLEM
x(x-2) -12(x-2) = 0
Therefore, x either equals 2 or 12
We reject 12 because it is larger than both of the original dimensions
CHECK
(8-2)(6-2) = 24
6 x 4 = 24
pls help meee!! TT,,,
Answers
Answer:
B 523.33
Step-by-step explanation:
I answered that question before
PLZ HELP I AM FAILING MATH!!
How many variable terms are in the expression 3x3y + 5x2 − 4y + z + 9?
Answers
answer:3
explaintion:
count the letters
Predict what the products would be in the following double displacement reaction:
KBr + AgNO3---->____ + ____
Answers
KBr + AgNO3 --------> KNO3 + AgBr
It is Double displacement reactions ( means ions exchange take place)When potassium bromide react with silver nitrate then,products came out are potassium nitrate and silver bromide.you can find the constant of proportionality by finding the ratio of
Answers
Answer:
The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate. The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other.
Step-by-step explanation:
The proportionality constant is the ratio of two directly proportional quantities.
What is a constant of proportionality?The proportionality constant is the ratio of two directly proportional quantities. When two quantities increase and decrease at the same rate, they are directly proportional. The proportionality constant k is given by k=y/x, where y and x are two directly proportional quantities.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Two numerical sequences, often experimental data, are said to be proportional or directly proportional if their corresponding elements have a constant ratio, which is known as the coefficient of proportionality or proportionality constant.
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A direct variation function contains the points (-9, 3) and (-12, 4). Which equation represents the function?
Oy=-3x
Oy=
O y
Oy=3x
Answers
Explaination: when there is two negatives it would turn into a positive bit there are positives too so it would stay negative and yeah
The equation which represents the function is y=-1/3x
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
We have to find equation of line passing through points (-9, 3) and (-12, 4)
slope = 4-3/-12+9
=1/-3
=-1/3
Now let us find y intercept
3= -1/3(-9)+b
3=3+b
b=0
Hence, the equation which represents the function is y=-1/3x
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Please help!
What is one proportion?
Answers
31
1/20
What is the x-value of the system of equations shown below?
2x + y = 6
y = 3x - 4
3
-2.
2.
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Answers
Answer:
x=2
Step-by-step explanation:
First you put the equations in the form of y = mx + b
Then once they are like that it would look like:
y = -2x + 6
y = 3x - 4
So then you can set them equal to each other and it will look like this:
-2x + 6 = 3x - 4
Then you add 2x to both sides and get:
6 = 5x - 4
Next, add 4 to both sides and get:
10 = 5x
So then you will simplify by dividing both sides by 5 and getting:
2 = x
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is the slopes 4 and -4 perpendicular, parallel, or neither?
Answers
Parallel = same slope
Answer: neither
2. Lorena is trying to choose between two different savings accounts at H-Town Bank. She will deposit $3,500 dollars and will leave the money in the account for 12 years. There will be no additional money deposited or withdrawn from the account.
Answers
Answer:
First of all, this question is not complete. So, we will be hypothetically create two accounts and try to choose the one with the greater profit.
Choice 1 = X = Final Amount after 12 years = $5600
Choice 2 = Y = Final Amount after 12 years = $6285.50
Hence, Lorena should choose choice 2, as it gives more profit over than choice 1.
Step-by-step explanation:
First of all, this question is not complete. So, we will be hypothetically create two accounts and try to choose the one with the greater profit.
Initial Deposit Amount = $3500
Time period = 12 years
Let's Suppose Lorena has two X and Y choices of accounts at H-town Bank.
X = simple interest of 5% over the initial amount for 12 years.
Y = Compound interest 5% over the initial amount for 12 years.
Solution:
Let's calculate the profit for choice 1 = X
Simple interest = 5%
Initial amount = $3500
Time period = 12 years
Formula = A = P (1 + rt)
where, A = Final amount after 12 years
t = time period in years = 12
P = initial amount to be deposited = $3500
r = annual interest rate = 5%
Plug in the values to get the total amount.
A = 3500(1+0.05x12)
A = $5600 = final amount Lorena will get after 12 years.
Let's calculate the profit for choice 2 = Y
Compound interest = 5%
Initial amount = $3500
Time period = 12 years
Formula = A = P [tex](\frac{r}{n} + 1)^{nt}[/tex]
where,
A = Final amount after 12 years
t = time period in years = 12
P = initial amount to be deposited = $3500
r = annual interest rate = 5%
n = number of times interest rate is applied or compounded. = 12
Plug in the values to get the total amount.
A = P [tex](\frac{r}{n} + 1)^{nt}[/tex]
A = $6285.50
Hence, Lorena should choose choice 2, as it gives more profit over than choice 1.
Solve the proportion: 10/9=5/k
Answers
Answer:
k= 9/2
decimal form:4.5
mixed number: 4 1/2
Step-by-step explanation:
Answer:
k=4.5
Step-by-step explanation:
10 / 9 = 5 / 4.5
PLEASE HELP ME BRAINLY I WILL GIVE BRAINLEST PLEASEEEEE GUYS
Answers
Answer:
1.=4x+8
2.=6x+8x
3.=8x+12
4.=6x+6y+6z
Step-by-step explanation:
Answer:
This is my other account.
Step-by-step explanation:
Please help me! Need help! I will give brainliest.
Answers
Answer:
A I think
Step-by-step explanation:
If Alice had 50 pieces of ribbon and she used 38 pieces how many pieces does she have leftover? (She has green ribbon to make her a new green dress)
Answers
Answer:
12
Step-by-step explanation:
This is a standard subtraction problem, so our equation is:
50 - 38 = 12
So she has 12 pieces of ribbon left
Answer:
12
Step-by-step explanation:
This is a simple subtraction equation.
50-38
=12
Or you could reverse it,
38+12
=50
What is the value of x that makes this equation true?
-0.03x = -12.42
А
-414
B
-12.45
С
-0.3726
D
414
E
468
Answers
Answer:
D.414...................
Diane buys candy that costs $4 per pound. She will spend more than $20 on candy. What are the possible numbers of pounds she will buy?
Use
P
for the number of pounds Diane will buy.
Write your answer as an inequality solved for p.
Answers
Answer:
12 pounds
Step-by-step explanation:
We know that the candy costs $4 per pound
We also know that he will only spend up to $48
We can represent this as an equation:
4x = 48
Where as x = number of pounds
Solve the equation to find how many pounds he can buy.
4x = 48
Divide both sides by 4
x = 12
This means that Kareem can buy 12 pounds
The function () is shown in this graph.
10.30
The fonction () = -6x - 5.
Compare the slopes
O A. The slope of K%) is the same as the slope of g(x).
O B. The slope of fx) is andefined and tha slope of g(x) is negativer
O C. The slope of) is greater than the slope of dx)
D. The slope of X) is less than the slope of g(x).
Yes
Answers
Answer:
is there anymore to the question question?
Step-by-step explanation:
a) 1/5 ÷ 4
b) 7 ÷ 1/6
Answers
Answer:
What is the question.
Step-by-step explanation:
Please let me know so I can help
Help plz Help plz Help plz Help plz
Answers
Answer:
I wanted to let you know that you are NOT what your username suggests you are. Please do not think like that.
Step-by-step explanation:
Pls help and show workings
It due in a hour
Answers
Answer:
13
Step-by-step explanation:
i answered this for someone else a little bit ago and i got a thanks on it and i chose that answer because 13 is already on the triangle and n is too small to match up with the 13cm
HELP ASAP I will mark brainliest
Answers
Answer:
option 4
Step-by-step explanation:
Solve for M MUST SHOW WORK!!!
2 = m/2 - 7
M=???
Answers
Answer:
[tex]2 = \frac{m}{2} - 7 \\ \frac{m}{2} = 9 \\ m = 2 \times 9 \\ \boxed{m = 18}[/tex]
m=18 is the right answer.
If John drove 376.35 miles in 6.5 hours, what is Johns average speed in
miles per hour? *
Answers
Answer:
I believe the answer would be 57.9
Step-by-step explanation:
You would have to divide 376.35 by 6.5.
Hope this helps :D
