Answer:
umm...the wording is kinda confusing but im just gonna full send and say its c
Step-by-step explanation:
sry if its wrong lol (it probably is)
Answer:
Its actually B
Step-by-step explanation:
i AM THE edgEINGUITY GOD
L 5.2.3 Quiz: Two-Variable Systems: Substitution
Question 7 of 10
Use the substitution method to solve the system of equations. Choose the
correct ordered pair.
y = 10x-9
y = x + 18
Answer:
We get x=3 and y=21
The ordered pair will be: (3,21)
Step-by-step explanation:
We need to use the substitution method to solve the system of equations.
[tex]y = 10x-9\\y = x + 18[/tex]
For substitution method we substitute the value of x or y from one equation to other.
Let:
[tex]y = 10x-9--eq(1)\\y = x + 18--eq(2)[/tex]
Putting value of y from equation 2 into equation 1
[tex]y=10x-9\\Put\:y=x+18\\x+18=10x-9\\x-10x=-9-18\\-9x=-27\\x=\frac{-27}{-9}\\x=3[/tex]
So, we get value of x=3
Now, for finding value of y, We substitute the value of x
Find value of x from equation 2
[tex]y=x+18\\x=y-18[/tex]
Now, putting value of x in equation 1
[tex]y=10x-9\\Put\:x=y-18\\y=10(y-18)-9\\y=10y-180-9\\y-10y=-189\\-9y=-189\\y=\frac{-189}{-9}\\y=21[/tex]
So, we get value of y=21
So, We get x=3 and y=21
The ordered pair will be: (3,21)
In a school, 60% of the students are girls.
50% of the girls walk to school.
20% of the boys walk to school.
What percentage of the students walk to school?
Answer:
Not entirely sure but 38%
Step-by-step explanation:
Answer:
38%
Step-by-step explanation:
Giving brainliest!!!!!!!!!!!!!!!!!!
Answer:
D
Step-by-step explanation:
6+13 = 19 not 19.
In this case X=5 so No it isn't solution.
Algebra...George bought 2 identical couches and 3 identical chairs. A couch cost twice as much as a chair. He spent $270 more on th ecouches than on the chairs. How much did he spend altogether
Answer:
$1890
Step-by-step explanation:
x= couches
y=chair.
x=2y
2x=3y+270
2(2y) or 4y=3y+270
y=270
x=540
2(540)+3(270)=1890.
Hope this helps :D
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The total spending is $1890
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
George bought 2 identical couches and 3 identical chairs.
A couch costs twice as much as a chair.
Let the cost of one couch = 2x
Let the cost of one chair = x
Now,
He spent $270 more on the couches than on the chairs.
This means that,
2(2x) = 270 + 3x
4x = 270 + 3x
Subtract x on both sides.
x = 270
The total spending.
= 4x + 3x
= 4 x 270 + 3 x 270
= 1080 + 810
= $1890
Thus,
The total spending is $1890
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ5
What is the following difference? 2ab * (root(3, 192a * b ^ 2)) - 5(root(3, 81a ^ 4 * b ^ 5))
Answer:
C
Step-by-step explanation:
it was correct for me on edge
plzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answer:
3a
Step-by-step explanation:
Here we have to divide like terms that means 9 by 3, a^3 by a^2 and b by b. 9 by 3= 3, a^3 by a^2=a after subtracting power 3 and 2 we get 1 and b by b are both cut like dividing 2 by 2 is cut and we get 1 which is not necessary to write as there would be no difference in ans.
Hope this helps you
Select the correct answer.
Solve the system of equations.
y = x + 2
y = x2 + 7x + 10
A.
(-2,0) and (-4,-2)
B.
(-2,-4) and (-4,-6)
C.
(-2,-2) and (-4,0)
D.
(2,4) and (4,6)
Answer:
(-2,0) and (-4,-2)
Step-by-step explanation:
The solution to the system of equations is where the two graphs cross
They cross at (-2,0) and (-4,-2)
Answer:
The answer is A
Step-by-step explanation:
Go through each one and just plug in the equation
ALso a easier way is just look at the graph and look at the two lines that are shown *when the blue thingy crosses the line* (My vocabulary sucks rn)
ANd there are 2 points there, identify and you should be fine
ALso for equation purposes
y=x+2
B and C dont work
Only A and C
But the second one
Only A woris so A
Find the 8th term of the geometric sequence 10, -40, 160, ...
Answer:
-163840
Step-by-step explanation:
You're multiplying by -4 every time.
10, -40, 160, -640, 2560, -10240, 40960, -163840... so on and so forth.
you say me when you start at 21 and count by tens. I am after 91. I am before 111. What number am i?
Answer:
101
Step-by-step explanation: it is before 111 and after 91
Answer:
101
Step-by-step explanation:
91, 101, 111. 101 is above 91, but below 111, while it is also counting by tens starting from 21
How many positive four-digit integers have the three digits the same and a different fourth digit (in some order)
Answer:
81 * 4 = 324.
Step-by-step explanation:
There are 81 * 4 = 324 such integers.
There are 9000 four-digit integers from 1000 to 9999. Let’s refer to the digit that occurs three times as the triplet and the digit that occurs once as the singleton.
In the first (most significant) position there are 9 possible values for the singleton, 1 through 9. In each case there are also 9 possible values for the triplet. For example if the singleton was a 1, the triplets could be anything but a 1: 1000, 1222, 1333, …, 1999. So there are 9 * 9 = 81 cases with the singleton in the first position.
A singleton in the second position can have 10 possible values, 0 through 9. If it’s a 0 there are 9 possible values for the triplet: 1011, 2022, 3033, …, 9099. If it’s anything else there are only 8 possible values for the triplet since the triplet cannot be 0: 2122, 3133, 4144, …, 9199. So there are 9 + (8 * 9) = 81 cases with the singleton in the second position.
The third and fourth positions work just like the second. So the grand total is 81 * 4 = 324.
If you plot the 9000 four-digit integers as a 100 x 90 grid of squares and color the integers with three same digits in red, an interesting pattern occurs:
There are 81 * 4 = 324 such integers.
There are 9000 four-digit integers from 1000 to 9999. Let’s refer to the digit that occurs three times as the triplet and the digit that occurs once as the singleton.
In the first (most significant) position there are 9 possible values for the singleton, 1 through 9. In each case there are also 9 possible values for the triplet. For example if the singleton was a 1, the triplets could be anything but a 1: 1000, 1222, 1333, …, 1999. So there are 9 * 9 = 81 cases with the singleton in the first position.
A singleton in the second position can have 10 possible values, 0 through 9. If it’s a 0 there are 9 possible values for the triplet: 1011, 2022, 3033, …, 9099. If it’s anything else there are only 8 possible values for the triplet since the triplet cannot be 0: 2122, 3133, 4144, …, 9199. So there are 9 + (8 * 9) = 81 cases with the singleton in the second position.
The third and fourth positions work just like the second. So the grand total is 81 * 4 = 324.
If you plot the 9000 four-digit integers as a 100 x 90 grid of squares and color the integers with three same digits in red, an interesting pattern occurs:
(If you zoom in, the four-digit number is printed inside each red square - not sure whether or not that will come through after Quora processes the image.)
Hope this helps!
Brain-List?
Answer:
81
Step-by-step explanation:
4 digit number: xxxy
x=1 y can be 0,2,3,4,5,6,7,8,9 ...9 possibility
x can be 1,2,3,4,5,6,7,8,9 ....9 too
9 x 9 = 81
My best guess, wish it's right.
-10 F is colder than -4 degrees?
Answer: yes, it is a smaller temperature, which means that is "colder"
Step-by-step explanation:
I guess that the question is:
Is -10°F colder than - 4°C?
Ok, when we have a temperature T in Celcius, the equation to transform this quantity to the Fahrenheit scale is:
T' = (T*9/5) + 32°
Replacing T by the temperature in celcius, we get:
T' = (-4°*9/5) + 32° = 24.8°F
This means that -4°C is equivalent to 24.8°F
And -10°F is a smaller value than 24.8°F (which mean that is colder)
This implies that -10°F is colder than -4°C
Then the statement is true.
Evaluate d − f if d = 7 and f = −15
Answer:
Step-by-step explanation:
7 - - 15
7 + 15
22
hope this helps <3
What is the simplified form of StartRoot StartFraction 2,160 x Superscript 8 Baseline Over 60 x squared EndFraction EndRoot? Assume x ≠ 0. 36x3 36x2 6x3 6x2
Answer:
6׳ is your answer.
Step-by-step explanation:
Edge2020
Answer:c
Step-by-step explanation:
I tried to type this as clear as possible, Lol can someone help-w
The positions of two divers from the water's surface after a dive are shown:
Jack: −35 feet
Simon: −40 feet
Which inequality explains why Jack is closer to the surface than Simon?
A. Because −35 > −40, so −35 is closer to 0 than −40
B. Because −35 −40, so −35 is farther from 0 than −40
D. Because −35 < −40, so −35 is farther from 0 than −40
Answer:
A
Step-by-step explanation: because when you say its closer to 0 thats right
Answer:
A
Step-by-step explanation:
Hope this helps anybody <33
(Entered this on my test and it was correct !!)
How many solutions are there to the system of equations graphed below?
2 solutions
1 solution
Infinitely many solutions
No solution
Answer:
there is no picture??
Step-by-step explanation:
where is the pic
The Library has 2 books about the desert and 8 books about the rain forest. The books were divided into groups of 2. How many groups are there?
You have 2 books abt the desert and 8 abt the rain forest
and 4×2=8
so they're 4 groups
hope this is the right awnser since I'm not smart :)
2. Identify the degree, leading coefficient, and constant value
a. f(x) = x3 - 8x2 - x+8
Answer:
Just look, qnd i think you can sollw the problem.
Solve for X 3(x•2)=10•x
I don’t remember how to do this
Answer:
The inequality of these 2 numbers is 4
Step-by-step explanation:
You have to find the difference between these numbers and you'll get your inequality. Hope this helps!
Please mark me as brainliest :)
Which is an example of a non-statistical question?
Questions
Question 1 Is Because of Winn-Dixie your favorite book?
Question 2 How many books has each student read in the last month?
Question 3 How many books does each student own?
Question 4 How many books did you read over the summer?
Answer:
Question 1
Step-by-step explanation:
Write the point-slope form of the equation for a line that passes through (6, -1) with a slope of 2.
The value of xi is
The value of yı is
The point-slope form of the equation is
9514 1404 393
Answer:
the value of x1 is 6the value of y1 is -1the point-slope equation is: y +1 = 2(x -6)Step-by-step explanation:
Point-slope form is ...
y -y1 = m(x -x1) . . . . . . line with slope m through point (x1, y1)
The given point is (6, -1), so ...
x1 = 6
y1 = -1
The given slope is 2, so ...
m = 2
Substituting these into the point-slope form above gives ...
y -(-1) = 2(x -6)
y +1 = 2(x -6)
Answer:
y+1= 2(x-6)
Step-by-step explanation:
Hi! Before we begin answering the question, we need to recall the formula for Point-Slope Form which is y- yı= m(x-xi), in which m is the slope of the function. With this given information, we just need to plug in the point (6,-1) and the slope 2 into the given function.
This will look like:
y- (-1) = 2 (x-6)
Notice that two negatives will make a positive, so the left side of the equation is the same as y+1.
Therefore, our answer is y+1= 2(x-6) .
13 points for anyone that can solve the issue
please show working
Answer:
Step-by-step explanation:
1. u^2 = x^(p+q)
v^2 = x^(p-q)
Show that logx u + logx v = p
From statement 1
p + q = logx u^2 = 2 logx u (by the laws of logs)
Similarly:
p - q = logx v^2 = 2 logx v
So 2 logx U + 2 logx v = p+q + (p - q)
2 (logx u + logx v) = 2p
logx u + logx v = p.
Also 2(logx u - logx v) = p+q - (p - q) = 2q
and logx u - logx v = q.
2. ∛(8a^3b^3) / √(1/25 * a^4b^7)* (16√(a^4b^6))^-1/2
= 2ab / 1/5a^2b^7/2 * (16a^2b^3)^-1/2
= 2ab / 1/5a^2b^7/2 * 1 / 4ab^3/2
= 2ab / 4/5 a^3 b^5
= 5ab / 2 a^3 b^5
= 5/(2a^2b^4).
Answer:
Step-by-step explanation:
help !!! find the value of x, please show how you solved it
Answer:
x = 48°
Step-by-step explanation:
Since the 2 legs are congruent then the triangle is isosceles and the base angles are congruent, that is
x = 48°
What are two different way of factoring -3x-9? Select all that apply
Options:
A. –3(x + 3)
B. 3(x + 3)
C. 3(–x – 3)
D. –3(x – 3)
Answer:
A and C
Step-by-step explanation:
Given
[tex]-3x - 9[/tex]
Required
Factorize
The options are not given; So, I'll answer on a general term
[tex]-3x - 9[/tex]
Express -9 as -3 * 3
[tex]-3x - 9 = -3x - 3 * 3[/tex]
Then factorize 3 out of the expression as:
[tex]-3x - 9 = 3(-x - 3)[/tex]
Another way is to factor -3 out of the expression as:
[tex]-3x - 9 = -3x - 3 * 3[/tex]
[tex]-3x - 9 = -3(x + 3)[/tex]
1) Avery also tracks the number of minutes a player
plays and the number of points the player scored.
Describe the association between the two data sets.
Tell what the association suggests.
Points Score
Answer:
the amount of players should determine the amount of points scored within the game, so the more points scored the more players there should be.
Step-by-step explanation:
Three consecutive integers have a sum of 87. Find the integers.
Answer:
28, 29, 30Step-by-step explanation:
Let the integers be x- 1, x and x +1, then:
x - 1 + x + x + 1 = 873x = 87x = 29The integers are 28, 29, 30
Answer:
Let the numbers be (x-1), x and (x+1)
According to the above problem,
[tex](x - 1) + x + (x + 1) = 87 \\ 3x = 87 \\ \boxed{x = 29}[/tex]
Therefore, the numbers are 28, 29 and 30.
In which quadrant is the number -14 – 5i located on the complex plane? a.I b.II C.III D IV
Simplify 7 + (−3) pls help its due today afternoon
Answer:
4
Step-by-step explanation:
You can rewrite this equation like this
7-3
which equals 4
36 + 15(40 - 35)
Evaluate
If a video is getting 12,000 views every 4 hours, how long will it take to reach 30,000 views?
Step-by-step explanation:
12,000 views = 4 hours
=> 30,000 views = 4 * (30000/12000) = 10 hours.
Hence it will take 10 hours.
Answer:
10
Step-by-step explanation:
Since we know every 4 hours the vid recieves 12,000 views, we divide 12,000 by 4 to see how many views it recieves in 1 hour. We get 3,000. So 3,000 views every hour. Divide 30,000 by 3,000, to get 10 hours.