As you said, we can solve this system for y by using substitution.
[tex]x = 2y - 6\\y = 3x - 7\\\\y = 3(2y - 6) - 7\\\\y = 6y - 18 - 7\\\\y = 6y - 25\\\\-5y = -25\\\\y = 5[/tex]
Now, using what we got for y, we plug it into one of the original equations to solve for x.
[tex]x = 2(5) - 6\\\\x = 10 - 6\\\\x = 4[/tex]
Now we have the solution of this system.
[tex](4, 5)[/tex]
For the given equations x=2y-6 and y=3x-7 the value of x is 4 and the value of y is 5.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
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.
Given that the two equations are x=2y-6 and y=3x-7. The value of x and y will be calculated as,
x=2y-6
y=3x-7
Solve the above equations by substitution method,
x=2(3x-7)-6
x = 6x -14 - 6
6x - x = 20
5x = 20
x = 4
The value of y will be calculated as,
y=3x-7
y = ( 3 x 4) - 7
y = 12 - 7
y = 5
To know more about an expression follow
https://brainly.com/question/25968875
#SPJ5
help me how to answer this please
Step-by-step explanation:
x^2 + 4x - 21 = 0
(x - 3)(x + 7) = 0
x = 3 or x = -7
x^2 - 14x = -24
x^2 - 14x + 24 = 0
(x - 12)(x - 2) = 0
x - 12 = 0 or x - 2 = 0
x = 12 or x = 2
2x^2 - 12 = 2x
x^2 - x - 6 = 0
(x - 3)(x + 2) = 0
x = 3 or x = -2
Topic: Factorisation
If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!
Which statement is true for all triangles with exterior angle 1 and remote interior angles 2 and 3?
Answer:
The answer is below
Step-by-step explanation:
The measure of the exterior angle 1 of a triangle is equal to the sum of the corresponding interior angles 2 and 3.
This is evident in the Theorem 3 of a triangle
For example
Given a hypothetical triangle, with the following angle QRS, ∠1, ∠2, and ∠3 are interior angles. And ∠4, ∠5, and ∠6 are the three exterior angles.
We have the following ∠4 = ∠2 + ∠3
∠5 = ∠1 + ∠3
∠6 = ∠1 + ∠2
Define the is a way of expressi a relationship between x and y in set notation it is called an
Answer:
I think it’s an ordered pair?
Step-by-step explanation:
Jessica has 3 cards in a bag,each marked with a letter. The letters are X, Y, and Z. Without looking, she reaches into the
bag, pulls out a
card, and then puts the card back in the bag. If Jessica does this 3 times, what is the probability she pulls out the X card first, then the Y
card, and then the Z card? In a fraction
Answer:
Step-by-step explanation: It’s 3/7, 1/27, 3/20 idk which one tho :(
WILL GIVE 25 POINTS PLEASE HELP
Answer:
A: rising B: falling C: falling D: falling
Step-by-step explanation:
i think its correct i might be wrong
Graph the line by plotting any two ordered pairs that satisfy the equation.
-6y = 9
Answer:
GRAPH IS IN THE PICTURE BELOW
Step-by-step explanation:
Does anyone know this?
Answer:
no? :I
Step-by-step explanation:
Which of the following quantities are continuous ?
Answer: A. only II
Step-by-step explanation:
Mathematics calculus differentiates things into discrete and continuous. Discrete things have indivisible units, the example will be how many dogs in a village. There is no half dog, it's either one, two, etc. But the distance covered by train can be written as half miles, it's the divisible unit.
The number of books and bracelets also discrete, thus the answer is A.
The difference 25(d−10)−23(d+6) is?
2/9 of my number is 4. what is my number?
Be the brainy one ny answerinng the question OK?
Is (-4)6 positive or negative?
Answer:
+2/positive 2
Step-by-step explanation:
positive 2 because + and - = - but the number 6 is bigger than 4 thats why it is +2
Answer:
Negative
Step-by-step explanation:
Any time you multiply a positive number by a negative, the answer will always be negative.
N = negative
P = positive
N*N = P
N*P = N
P*P = P
I am trying to be a
Factor the expression completely. -24x-6x^5
Answer: -6x(x^4 + 4)
Step-by-step explanation: factor the -6 out of the problem
I'm so stressed Please help I will try to give you BRAINLIEST if you get it right I promise please help
Your friend says that he can get a dozen dvds from website for $90
The website probably sells pirated DVD
Answer:
He is wrong. The total cost would be $111
Step-by-step explanation:
Hope this helps!
Graph each set of integers on a number line.
7. (4, -3, 1,5)
-6-5-4-3-2-1 0 1 2 3 4 5 6
8. (-15, -12, -9, -2)
+++++
-14 -12 -10 8-6
H-
-2
4
9. (8,3, -7,-5)
-8 6 4
-2.
0
2.
4
6
8
10. 1-14, - 7, 10, -1)
++
-15
-12
9
3
0
3
6
9
11. 1-6, -1,0,31
-6-5-4-3-2-1 0 1 2 3 4 5 6
Answer:
-14 -12 -10 8-6
Step-by-step explanation:
what is the rule for this table, IN -7,0,2,13,14,18. OUT -18,-11,-9,2,3,7
9514 1404 393
Answer:
y = x -11
Step-by-step explanation:
The table values don't have "nice" differences, so it is not easy to identify the pattern immediately. I found it worked to plot the points on a graph. This shows they are all on a line with a slope of 1. The point (0, -11) tells us that the y-intercept is -11.
A line with a slope of 1 and a y-intercept of -11 has the equation ...
y = x - 11
HELPPPPPP ASAPPPPP!!!!!
Katie wants to buy a scooter. It costs $100. She has to wait until the scooter goes on sale for at least 35% off before she has enough money buy it. How much money does Katie have to buy the scooter?
$35.00
$60.00
$65.00
$75.00
Answer:
C) $65.00
hope that helps!
If AD : AB = 2 : 5, the coordinates of point F are . Point E has the coordinates (2.8, -3), and the coordinates of point D are .
Answer:
(4.4, -4.6) and (4.4, -1.4)
Step-by-step explanation:
Got a 100 on plato
Coordinates are usually denoted by (x,y) the x-value and y-value.
What is a Coordinate?This has to do with the system which makes use of numbers or coordinates in order to find the location of a point.
Please note that your question is incomplete so I gave you a general overview to get a better understanding of the concept.
Read more about coordinates here:
https://brainly.com/question/17206319
#SPJ2
Which inequality is true?
–1.5 > –0.5
Negative one-half
–2.5 < –2
Negative 1 and one-half
Answer:
-2.5 < -2
Step-by-step explanation:
-3, -2.5, -2,...,0,1 ,2, 3, ...
Answer: the answer is -2.5 =2 1/2, -0.5 <0, -2.5 <-2 im probably wrong but oh well...
Step-by-step explanation:
Solve for x in this equation: 3/4 +|5-x| = 13/4
Step 1: Isolate the absolute value by subtracting
from both sides of the equation.
Answer: this is correct
Step-by-step explanation:
It says it’s correct
An oil company fills 1 over 12 of a tank in 1 over 3 hour. At this rate, which expression can be used to determine how long will it take for the tank to fill completely?
Answer:
4
Step-by-step explanation:
Don't let fractions fool you.
of a tank in an hour is equal to:
1/12 of a tank in 20 minutes.
Thus we know in an hour, an oil company can fill 3/12 of a tank (60 minutes in an hour).
3 x 4 = 12, and 12/12 = 1(a whole tank), so we multiply 1 (hour) by 4.
Our answer is that it takes 4 hours to fill a tank.
Answer:
it's 1/3 ⋅ 12 hours
or
3 ⋅ 12 hours
Step-by-step explanation:
Write a story about temperatures that this expression could represent: ½ + (-¾)
Answer:
boom
Step-by-step explanation:
Answer:
so when your in the avatar state it is below zero, so you have to wear warm cloths
Step-by-step explanation:
Rewrite in simplest terms: -3(-8d – 1) + 2d
Answer:
26d+3
Step-by-step explanation:
first parentheses
-3×-8d=24d
remeber negative × negative = positive
-3×-1=3
24d+3+2d=
26d+3
I hope I helped! :)
6.34 1.645
10.3401-0.34
45
Step-by-step explanation:
dude wut r we suppose to do??
2. What is the slope of the line that passes through
the points (8,5) and (-4,-15)?
Answer:
m=5/3
Step-by-step explanation:
if that's not how you write it then try y=5/3x
What is happening to this graph when the rvalues are
between - 1 and 1?
Answer:
Where's The graph?
Step-by-step explanation:
Answer:
There is no graph post the graph
Step-by-step explanation:
a recipe for salsa is 65% tomatoes.if a batch contains 5.2 cups of tomatoes,how large is the batch of salsa. please help!!
Answer:
8 cups
Step-by-step explanation:
Let the total batch of salsa be x.
[tex]\frac{65}{100}[/tex]x = 5.2
[tex]\frac{100}{100}[/tex]x = [tex]\frac{100}{65}[/tex] × 5.2
x = 8
inside each set and subsets .write at least 5 example of each kind of number. integers , whole ,rational ,natural ,irrational
Answer:
Integers: is the set of all the numbers that can be created by adding ones or subtracting ones a given number of times to zero.
for example:
4 = 0 + 1 + 1+ 1 +1 is an integer.
-3 = 0 - 1 - 1- 1 is an integer.
0 is also an integer, you add ones zero times.
Then 5 examples of integers can be:
-10, -5, 0, 4, 18
Whole numbers: this set is the set of the positive integers and the zero.
Then 5 examples are:
0, 1, 4, 6, 173
Rational: All the numbers that can be written as a quotient of two integers.
5 examples are:
2/2, 7/3, 4/16, 100/10, -500/1048
Natural: Is the set of the positive integers.
5 examples are:
1, 4, 6, 120, 47
Irrational: Are numbers that have infinite digits after the decimal point, such that there is no pattern in those digits. The squareroots of prime numbers are always irrational numbers.
5 examples are:
pi, √2, √3, √5, √13
where pi = 3.141592653...
Is the relation between the perimeter of a circle and its diameter.
perimeter = diameter*pi.
Advertising. I know I have to write about advertising. What do I know about advertising? I know you have to market a product to a specific audience.
Advertising is used to sell things like soft drinks or cars. I think I need to narrow down my choices of what to advertise Advertisements can be written,
heard, or seen. Should I have a visual advertisement on a new brand of energy drink? Which prewriting strategy is shown above? (4 points)
• Brainstorming
O Freewriting
O Clustering
Journalist Questions
Answer:
i think brainstorming
Step-by-step explanation: