Answer:
(x,y)=(4,-3)
Step-by-step explanation:
2x- 4y = 20
x=4
Substitute the value of x
2*4-4y=20
Solve equation
y=-3
A possible solution is
(x,y)=(4,-3)
Check the solution
2*4-4*(-3)=20
4=4
Simplify
20=20
4=4
The ordered pair is the solution
The solution of the given system of equations is y = -3.
What is the equation?A formula known as an equation uses the same sign to denote the equality of two expressions.
In another word, the equation must be constrained with some constraints.
For example 5x + 4y = -8
Given the set of equations,
2x- 4y = 20
x=4
By substitution,
2(4) - 4y = 20
8 - 4y = 20
-4y = 20 - 8
-4y = 12
By multiplying by -1 both sides
4y = -12
By dividing 4 both sides
y = -3
Hence "The solution of the given system of equations is y = -3".
For more about the equation,
brainly.com/question/10413253
#SPJ2
Which one should I choose
Answer:
its the last one
Step-by-step explanation:
the sign flips when you divide by a negative
9514 1404 393
Answer:
z ≥ 3
Step-by-step explanation:
When you divide by the negative coefficient of z, you reverse the inequality symbol:
-8z ≤ -24
z ≥ -24/-8 . . . . divide by -8
z ≥ 3
This graphs as a solid dot at 3, with the line extending to the right (to greater values).
8x + 8 = 180 help me please
Answer:
Step-by-step explanation:
8x=180-8
8x=172
8x/8=172/8
x=21.5
Answer:
43/2
Step-by-step explanation:
Move Constant to the left
8x+8=180
calculate
8x=180-8
divide bothsides
8x=172
Answer
z=43/2
Write the equation of a line with a slope of 5 and contains the point (-6, 2)
Question
What is the length of CD? In this diagram, ABC - EDC.
A. 2
B. 3
C. 4
D. 5

Answer:
C. x = 4 is the correct answerStep-by-step explanation:
To solve this, we will create a proportion.
The proportion will show the ratio of ABC to EDC and allow us to solve for x.
20 - x / 20 = x / 5
100 - 5x = 20x
100 - 5x + 5x = 20x + 5x
100 = 25x
100 / 25 = 25x / 25
4 = x
C. x = 4 is the correct answerAnswer: is 4
Step-by-step explanation:
just did the test
What is the y-intercept of the line?
Answer:
The Y-intercept is 1
It is where the line meets the y-axis
~PumpkinSpice1
[tex]==================================[/tex]
Remember, the y-intercept is the point where the graph touches the y-axis (that's why it's called y-intercept).
Let's look at this graph and see if we can identify the y-intercept of the line.
If we look at our graph, we'll see that the line touches the y-axis at (0, 1).
[tex]\pmb{Note:-}[/tex] Remember, y-intercepts have an x-coordinate of 0.
And guess what the y-coordinate is? Yes, it's the y-intercept of the line.
Hence, the y-intercept of the line is
[tex]\pmb{the~y-intercept~is~1}[/tex]
[tex]==================================[/tex]
note:-Hope everything is clear; if you need any more explanation, kindly let me know.what does write 7 mean?
Answer:
How much does it take for 3/4 to go to 7? Lets call the number that does that, X. Now, add X to 2.35. What number do you get? Write that down and add the number.
Step-by-step explanation:
Does this make sense?
find the slope for (1, -7) (-5, 0)
Answer:
7/-6
Step-by-step explanation:
slope formula- (y2-y1)/(x2-x1)
plug in the numbers- (0+7)/(-5-1)
3.4 × 10-8 meter long. Write the length in standard form.
Answer:
0.0000000034
Step-by-step explanation:
3.4 × 10^-8
0.0000000034
first to answer corretly gets brainleist! I need ya to find the slope for me!
Answer:
The slope is 3.
Step-by-step explanation:
To find the slope of this line you just have to figure out the rise over run. The rise is positive because it's going up. The run is also positive because it's going to the right. The rise would be 2 because that's how many units up the line goes until it crosses the y-intercept. The run is 3 because that's how many units over until it crosses the y-intercept. But, in this case we are not using a fraction so we just use the run which is 3.
Hope this helps! Stay safe and please mark brainliest!
The total cost for tuition plus room and board at State University is 6,584
dollars. Tuition costs 1804 dollars more than room and board. What is the
tuition fee?
Answer:
$4,194
Step-by-step explanation:
First, you need to subtract the 1,804 from the the total, which will give you 4,780. Divide this by two to get the cost of room and board, which is 2390. To find the tuition fee, add 2,390 and 1,804, and that equals $4,194.
Party punch cost $2.50 per half gallon. How much would 6 gallons cost!!!!! HELP ASAP DUE AT MIDNIGHT
Answer:
2.50 times 2 is 5. $5 is now 1 gallon. 5 time 6 equal $30. $30 dollar is your answer. Please mark brainly!!
Step-by-step explanation:
Answer:
ehh its D.$30.00
Step-by-step explanation:
sry im not trying to be rude or anything... but do you know your times table >,<
quadratic equations
9 + 2x2 + 2 =0
Answer:i kinda don't understand but i guess you mean sqrt11/2?
Step-by-step explanation:2x^2+11=0 easy move
50 raised to the power of zero
$5.36 divided by 20 oz
Answer:
9.4534218
Step-by-step explanation:
i might be wrong if i am im sorry
Water pours into a tank over a 10-minute period. The función f(x) graphed below models the flow rate, in gallon per minute (GPM) Over which of the following intervals does the flow rate increases by the greatest amount?
Answer:
X=0 to x =1
Step-by-step explanation:
find the root of the equation
x^2=255
Answer:
15
Step-by-step explanation:
15^2=225
Answer:15
15^2=255 the other person was correct and i back that up
CAN SOMEONE TELL ME WHAT THE SLOPE IS
Answer:
[tex]m=\frac{2}{3}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (-2, 0)
Point (1, 2)
Step 2: Find slope m
Substitute: [tex]m=\frac{2-0}{1+2}[/tex]Subtract/Add: [tex]m=\frac{2}{3}[/tex]I have 3 pennies, 4 nickels, and 5 dimes. What ratio represents the following ratio: nickels to the total number of coins.
Answer:
1:3
Step-by-step explanation:
4:(3+4+5)
4:12
1:3
jessica will babysit children for $8 an hour. ciara will babysit for an appointment fee of $12 and $4 an hour. how many hours would they need to work to earn the same amount of money? if a baby sitter was needed for 5 hours, who would be less expensive?
Answer:
Answer are in bold below
Step-by-step explanation:
Question: 1
Jessica = $8
Ciara = $12 + 4 $16
Now we times both values.
16 x 8 = $128
8 x 16 = $128
They would both need to work 8 hours ft=or the same money.
Question 2:
$8 x 5 = $40
$16 x 5 =$80
Jessica will be less expensive.
Answer: 3 hours
Jessica=$8
Ciara= $4 + $12
8*3= $24
4*3= $12 +$12= $24
Because Ciara has an additional $12 fee, you have you add it on to her total.
Each of the 10 students in the baking club made 2 chocolate cakes for a fundraiser they all used the same recipe, using C cups of flour in total. Write an expression that represents the amount of flour for one cake. Use C as your variable.
Answer:
C / 20
Step-by-step explanation:
Number of students in the baking club = 10
Each student made 2 chocolate cakes
Total cakes = number of students × number of cakes per student
= 10 × 2
= 20
Total cups of flour used by 10 students = C cups
Amount of flour for one cake = Total cups of flour / Total cakes
= C / 20
The expression that represents the amount of flour for one cake = C / 20
Please help im very confused
Answer:
similar; AA similarity; RQP
Step-by-step explanation:
We know that angle R is congruent (equal) to angle C.
We know that angle Q is congruent to angle B.
Because they ordered their triangle statement CBA, and we know that R matches C and Q matches B, you should order your statement as RQP.
Can someone plz help
One question only
I WILL CROWN BRAINLIEST
Find the equation of the line that is parallel to the given line and passes through the given point.
y = −5x + 1; (5, 7)
See attachment for math work and answer.
The equation we are looking for is parallel to the given equation. This means both equations have the same slope.
Answer:
y = -5x + 32
Step-by-step explanation:
y = -5x + 1
=> (d): 5x + y - 1 = 0
d' is parallel to the given line and passes through the given point
=> (d'): passes through (5;7)
// (d): 5x + y - 1 = 0
=> (d'): 5x + y - 32 = 0 <=> y = -5x + 32
4x-1-5-2x
Help!!!!!!!!!!
Answer:
4x-1-5-2x
2x-6
Step-by-step explanation:
Answer:
2x - 6
Step-by-step explanation:
Each figure in the sequence shown is composed entirely of 1 × 1 shaded squares. If the pattern is continued, find the quotient of the area of the enclosed inner square to the sum of the areas of the shaded squares in the 2020th figure.
Answer:
505
Step-by-step explanation:
you first do 2020x2020 because you can see from the pattern, the inside squares are 1x1, 2x2, 3x3, so the 2020th inside squares would be 2020x2020. then, you would do 2020x4 for the shaded squares because if you see from the pattern, its 1x4, 2x4, 3x4, so the 2020th would be 2020x4. then you divide [tex]\frac{2020*2020}{2020*4}[/tex] which is 505.
Answer: 84
Step-by-step explanation:
21 * 4=84
Always multiply by 4.
Giving brainiest explain answer
Answer:
A.) -5
Step-by-step explanation:
Slope Formula ---> [tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex] m = slope
[tex]m = \frac{2 - (-3)}{-2 - (-1)}[/tex]
Eliminate negatives:
[tex]m = \frac{2 + 3}{ -2 + 1}[/tex]
Solve:
[tex]m = \frac{5}{-1}[/tex]
Simplify:
[tex]m = -5[/tex]
8. Given: GI +JL, GH = KL
Prove: HI~=JK
Answer: the length of GH is half the length of KL
Step-by-step explanation: edge 2021
The cost to rent a truck is a $75 flat fee. plus $0.55 per mile driven.
The table below shows the total cost of renting the truck for the first four miles.
Answer:
a) y = 0.55x + 75
b) $108
Step-by-step explanation:
a) to find the equation represent the sequence use the y=mx+b formula
y = total price
m = cost per mile
x = miles driven
b = flat fee
Therefore y = 0.55x+75
b) To figure out the cost of driving 60 miles you use the equation y = 0.55x + 75
y = 0.55 X 60 + 75
= 108
Therefore the cost of renting the truck and driving 60 miles is $108
Which expression is a difference of cubes?
Answer:
[tex](x-y)(x^2+xy++y^2)[/tex]
Step-by-step explanation:
[tex]Proof :\\(x-y)(x^2+xy+y^2)\\=(x^3+x^2y+y^2x-x^2y-xy^2-y^3)\\=x^3-y^3[/tex]
Answer:
It would be D
Step-by-step explanation:
Got it right on Edge 2021
(01.06) Select the choice that translates the following verbal phrase correctly to an algebraic expression: the sum of y and 7
Answer:
y+7
Step-by-step explanation:
Sum is referring to addition, and the 2 parts would be y and 7, so the answer is y+7
