Answer:
solving we get Solution set = {4,0}
Step-by-step explanation:
We are given system of equation:
[tex]9x + 4y = 36---eq(1)\\6x + 2.5y = 24---eq(2)[/tex]
Multiply eq(1) by 2 and eq(2) by -3
[tex]18x \ \ + 8y \ \ \ = 72\\-18x - 7.5y = -72\\---------\\0.5y=0\\y=0[/tex]
We get y=0,
Now finding x by putting value of y in eq(1)
[tex]9x + 4y = 36\\9x+4(o)=36\\9x=36\\x=\frac{36}{9}\\x=4[/tex]
So, solving we get Solution set = {4,0}
HELP ASAP PLEASE WILL MARK BRAINIEST PLEASEEEEE
Answer:
D. 7 up and 5 left
Step-by-step explanation
Pick any letter and see how you can get it to match the same letter but on the other shape. Ex. letter A if you go up 7 and then go 5 to the left it will be at the exact spot as A'. Hope this helps
Answer this for me please
Answer:
-3
Step-by-step explanation:
You cant count the spaces up (9) and over (-3) between the two points and do up/over so it would be 9/-3 and simplified that is -3/1 or 3
Mr. Coyne sells cars as a part time job and works off commission. When he sold a car last week he made $500. The car's selling price was $17,250. What percent was Mr. Coyne's commission? (Round to the nearest whole percent)
Answer:
Commission percent = 3 % (Approx)
Step-by-step explanation:
Given:
Amount of commission = $500
Sales price of car = $17,250
Find:
Commission percent
Computation:
Commission percent = [Amount of commission/Sales price of car]100
Commission percent = [500/17,250]100
Commission percent = 2.89 %
Commission percent = 3 % (Approx)
In 2011, a professional climber scaled the outside of Burj Khalifa making it all the way to 828 meters in 6 hours. how far did they climb in the first 2 hours?
Given:
Professional climbers climb 828 meters in 6 hours.
To find:
how far did they climb in the first 2 hours?
Solution:
According to the question,
In 6 hours, they climb 828 meters.
In 1 hour, they climb [tex]\dfrac{828}{6}[/tex] meters.
In 2 hour, they climb [tex]2\times \dfrac{828}{6}[/tex] meters.
Now, the distance they climb in the first 2 hours is
[tex]\text{Climb in first two hours}=2\times \dfrac{828}{6}[/tex]
[tex]=\dfrac{828}{3}[/tex]
[tex]=276[/tex]
Therefore, they will climb 276 meters in first 2 hours.
Write the factors of 6 that sum to -5.
Answer:
-2 and -3
Step-by-step explanation:
a negative multiplied by a negative is a positive so -2 multiplied by -3 equals 6. And, -2 + -3 = -5
Find the value of f(5) for each function. f(x) = -2 (x + 1)
solution
f(x)= 1/(3x+1)
When f(5/3)
f(x)= 1/(3x+1)
f(5/3)= 1/(3(5/3)+1)
f(5/3)= 1/(5+1)
f(5/3)= 1/6
Solve for Angle DFE and Angle EDS in the diagram below:
Answer:
DFE = 23
EDS = 111
Step-by-step explanation:
Mathematically;
(3x-10) + 46 + 180 - (5x + 14) = 180
Reason for this is that sum of angles in a triangle is 180
Thus;
3x-10 + 46 - 5x-14 = 0
-2x + 22 = 0
2x = 22
x = 22/2 = 11
DFE = 3x - 10 = 3(11) - 10 = 33-10 = 23
EDS = 180 - (5x + 14) (sum of angles on a straight line)
180 - (5(11) + 14)
= 180 - 69
= 111
EDS
what is the rate of change of the following equation: y = 2x - 5
Answer:
the rate of change is 2 because it's had the variable
Five more than the product of a number and 9 is equal to 7.
Answer:
(X*9)+5=7
Step-by-step explanation:
Why do people say if you answer a question that they thank is really hard they say they will give you a brainiest?
Answer:
i don’t know
Step-by-step explanation:
i think they give points if you answer a question and i think it gives you lots of points so people will answer the question faster
Please tell me the answer and explain
Answer:
first box: 12
second box: 5.5
the boxes in chart in order is 12, 17.5, 23, 39.5
Step-by-step explanation:
I've done this before
20. An adult pass for the county fair costs $2 more than a children's pass. When 378 adult and
214 children passes were sold, the total revenue was $2384. What is the cost of an adult pass?
Find the equation of the line parallel to y = x - 3 that also intersects the point (3,-2).
y = ( )x + ( )
Answer:
Y= 1x+-5
Step-by-step explanation:
24,12,6,...
find the 8th term.
Answer:
a = 24
r = 1/2
8th term = ar^(n-1) = 24. (1/2)^-1/2Answer:
0.188
Step-by-step explanation:
Have a good day :)
The sum of two numbers is less than 2. If we subtract the second number from the first, the difference is greater than 1. What are the two numbers?
Answer:
the value of these two numbers are 1/2 and 3/2
Step-by-step explanation:
Given that:
x+y < 2 ---- (1)
y - x > 1 ---- (2)
From equation (2), let y > 1 + x then substitute it into equation (1)
x + 1 + x < 2
2x + 1 < 2
2x < 2 - 1
2x < 1
x < 1/2
From equation (2), replace the value of x to be 1/2
y - 1/2 > 1
y > 1 + 1/2
y > 3/2
All of the following expressions simplify to -5x + 7, except ( x - 2) - (6 x - 9) (5 x + 1) - (-10 x + 6) -4 x + 2 x + 7 - 3 x (4 x + 3) + (-9 x + 4) hurry will give brainlest
Answer:
(5 x + 1) - (-10 x + 6)
5x +1 + 10x - 6
25x - 5
Step-by-step explanation:
(x - 2) - (6x - 9)
x - 2 - 6x + 9 =
-5x +7
(5 x + 1) - (-10 x + 6)
5x +1 + 10x - 6
25x - 5
-4 x + 2 x + 7 - 3 x
-5x + 7
(4 x + 3) + (-9 x + 4)
4x +3 -9x + 4
-5x + 7
The Expression which not gives (-5x+ 7) is (5 x + 1) - (-10 x + 6).
What is Expression?A mathematical operation such as subtraction, addition, multiplication, or division is used to combine terms into an expression. In a mathematical expression, the following terms are used:
An absolute numerical number is referred to as a constant.Variable: A symbol without a set value is referred to as a variable.Term: A term can be made up of a single constant, a single variable, or a mix of variables and constants multiplied or divided.Coefficient: In an expression, a coefficient is a number that is multiplied by a variable.Given:
1. (x - 2) - (6x - 9)
= x - 2 - 6x + 9
= -5x +7
2. (5 x + 1) - (-10 x + 6)
= 5x +1 + 10x - 6
= 25x - 5
3. -4 x + 2 x + 7 - 3 x
= -5x + 7
4. (4 x + 3) + (-9 x + 4)
= 4x +3 -9x + 4
= -5x + 7
Learn more about Expression here:
https://brainly.com/question/14083225
#SPJ2
When the angle of elevation of the sun is 55°, a flagpole casts a shadow that is 16.8
feet long. What is the height of the flagpole to the nearest foot?
Answer: 24ft (rounded)
Step-by-step explanation:
WHATS THE DOMAIN ON THIS GRAPH?
Get it right and you get brainly and thanks and a face
Answer:
all real numbers?
Step-by-step explanation:
I'm pretty sure but prolly wait for another answer
Answer:
I think it is D
Step-by-step explanation:
They are all real number and it also pass the vertical line test
please help me out...
Answer: B its associative property
Step-by-step explanation:
i have a feeling its B im sorry if im wrong
Anyone know I’m having a hard time!
Answer:
x = [tex]\sqrt{30}[/tex]
Step-by-step explanation:
Applying altitude- on - hypotenuse theorem.
(leg of large Δ )² = ( part of hypotenuse below it ) × ( whole hypotenuse )
x² = 3 × (3 + 7) = 3 × 10 = 30 ( take square root of both sides )
x = [tex]\sqrt{30}[/tex]
What is the value of 2/3 / 5/6
Answer:
4/5
Step-by-step explanation:
Answer:
4/5
Step-by-step explanation:
will give you BRAINLEST
A 400 kg box and a 200 kg are to pushed across a horizontal table, the exact same distance with the exact force. Which box will have the most work done on it? Which box will get to the end first? Explain both of your responses.
Answer:
Both boxes have the same amount of work applied to them. The smaller box will get to the end first.
Step-by-step explanation:
For the 400 kg box, we can say,
force = 1 newton
force = mass*acceleration
1 = 400*acceleration
acceleration = 1/400 meters per second^2
acceleration = 0.0025 meters per second^2
Each second, the larger box's velocity is increasing by 0.0025 meters per second.
While the smaller box would have an acceleration of...
force = 1 newton
force = mass*acceleration
1 = 200*acceleration
acceleration = 1/200 meters per second^2
acceleration = 0.005 meters per second^2
Which is twice as much as the larger box.
Put simply: if the force applied is the same for the two boxes, then the smaller box will have larger acceleration. This is because more force is needed to push on the larger mass.
Because the smaller box has more acceleration, it will naturally travel faster compared to the larger box. Therefore, the smaller box reaches the goal line faster.
A bag contains 5 red marbles and 10 blue marbles. If Jen selects a marble from the bag without looking, what is the probability that she will not pull out a red marble?
Answer:
since there is more blue marbles in the bag, she will have a higher chance of pulling out a blue marble instead of red, since there are less red marbles she has a lower chance of getting a red marble.
Step-by-step explanation:
Which of the following pairs of numbers contains like fractions?
A.32 and 2/3
B.5/6 and 10/12
c. 6/7 and 157
D.312 and 4/4
Answer:
B.5/6 and 10/12
Step-by-step explanation:
The given values are;
[tex]\frac{5}{6}[/tex] and [tex]\frac{10}{12}[/tex]
[tex]\frac{10}{12}[/tex] ,
reducing to the smallest term by dividing by 2;
is [tex]\frac{5}{6}[/tex]
So;
[tex]\frac{5}{6}[/tex] and [tex]\frac{10}{12}[/tex] are both like fractions.
Solve the following equation algebraically:
-16 = 16x^2 How many solutions does this equation have? Explain.
a. -1=x^2: One solution because only -1 will satisfy the equation.
b. -1=x^2: No real solution because there is no real number that, when squared, produces -1.
C. 1=x^2: Two solutions because the square root of 1 is positive 1 and negative 1.
d. 1=-x^2: One solution because only -1 will satisfy the equation.
1=x²: two solutions because the square root of 1 is positive 1 and negative 1
Answer:
B. -1 = x^2; No real solution because there is no real number that, when squared, produces -1
Step-by-step explanation:
F(x)=7x-3 what is the value of x when f(x)=25
Answer:
x=4
Step-by-step explanation:
7x4=28 and 28-3=25
. Fiona has 18 red carnations, 27 white carnations, and 36 blue carnations. She wants to make arrangements of red, white, and blue carnations.She plans to use all of the flowers and to have the same number of each color in each arrangement. If she makes the greatest number of arrangements possible, then how many blue carnations will be in each arrangement?
Answer:
9 blue carnations.
Step-by-step explanation:
Given that,
Fiona has 18 red carnations, 27 white carnations, and 36 blue carnations. She wants to make arrangements of red, white, and blue carnations.
If she makes the greatest number of arrangements possible, then we need to find how many blue carnations will be in each arrangement.
Greatest possible arrangements = HCF of 18,27 and 36
The factors of 18 are: 1, 2, 3, 4, 6, 9, 12, 18,
The factors of 27 are: 1, 3,9,27
The factors of 36 are: 1, 2, 3, 4, 6, 9, 12, 18, 36
The greatest common factor = 9
For blue carnation,
B = (36/9) = 4
Hence, in each arrangements there are 9 blue carnations.
Helllpppppp me please
Answer:
The answer is 9 7/10
Step-by-step explanation:
hope this helps
Clare has 60% of her goal of $80 saved for her trip. How much did she save so far?
Which equation below and solution for X does the model represent??
A) 2x + 2x = 85, x = 42.50
B) 4 + x = 85, x = 21.25
C) x + x + x + x = 85, x = 21.00
D) 4x = 85, x = 21.25
Answer:
D) 4x=85, x=21.25
Step-by-step explanation:
If the total is 85$, and every shirt costs the same amount, then you would divide 85 by 4.
That will leave you with 21.25 per shirt.
Answer:
D) 4x = 85, x = 21.25
Step-by-step explanation:
D) 4x = 85, x = 21.25
4x = 85
4 4
x = 21.25