-2x+2y=6 and 7x+4y=23
Let's solve this problem step-by-step:
Let's set:
[tex]-2x + 2y = 6 -- equation 1\\7x+4y=23 -- equation 2[/tex]
(equation1) * 2
[tex]-4x+4y=12--equation3[/tex]
(equation 2) - (equation 3)
[tex]11x = 35\\x= \frac{11}{11}--equation4\\x=1[/tex]
Plug (equation4)'s value of 'x' into (equation1)
[tex]-2(1} )+2y=6\\-2+2y =6 \\2y = 6+2 =8 \\y =4[/tex]
Thus x= 1 and y = 4
Let's check:
[tex]-2(1 )+2(4)=6\\2 +4 =6\\6=6\\ \\7(1)+4(4) )=23\\7+16=23\\ 23 =23\\[/tex]
Answer: x = 1 and y= 4
Hope that helps!
go math book 5th grade lesson 10.6
Answer:lol
Step-by-step explanation:
Given 4y2 + x – 32y + 68 > 0, which ordered pair is part of the solution set? (–3, 5.7) (–5.9, 4) (–8, 5) (–13, 3)
Answer:
A. (-3, 5.7)
Step-by-step explanation:
Inequalities help us to compare two unequal expressions. The ordered pair that satisfies the given inequality is (–3, 5.7).
What are inequalities?Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed.
It is mostly denoted by the symbol <, >, ≤, and ≥.
The ordered pair that satisfies the given inequality is the solution set of the inequalities, the inequality can be written as,
[tex]4y^2+x-32y+68 > 0\\\\4y^2-32y+68 > -x[/tex]
Now, let's substitute the value of the first ordered pair, (–3, 5.7),
[tex]4(5.7)^2-32(5.7)+68 > -(-3)\\\\129.96-178.24+68 > 9\\\\19.72 > 9[/tex]
Since the inequality is satisfied the ordered pair is a set of solutions.
For the second ordered pair (-5.9,4),
[tex]4y^2-32y+68 > -x\\\\4(4)^2-32(4)+68 > -(-5.9)\\\\64-128+68 > 5.9\\\\4 > 5.9[/tex]
Since inequality is not true it is not the solution to the problem.
For the third ordered pair (-8, 5),
[tex]4y^2-32y+68 > -x\\\\4(5)^2-32(5)+68 > -(-8)\\\\64-128+68 > 8\\\\8 > 8[/tex]
Since inequality is not true it is not the solution to the problem.
For the fourth ordered pair (-13, 3),
[tex]4y^2-32y+68 > -x\\\\4(3)^2-32(3)+68 > -(-13)\\\\64-128+68 > 13\\\\8 > 13[/tex]
Since inequality is not true it is not the solution to the problem.
Learn more about Inequality:
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Find the sale price of a $45 item after a 20% discount.
Answer:
36$
Step-by-step explanation:
Which inequality models this problem?
Josephine started a business selling cosmetics. She spent $4500 to obtain her merchandise, and it costs her $200 per week for general expenses. She earns $550 per week in sales.
What is the minimum number of weeks it will take for Josephine to make a profit?
550w<4500+200w
200w≥4500+550w
550w>4500+200w
200w>4500+500w
Answer:
550w>4500+200w
Step-by-step explanation:
Expenses: $4500 + $200 per week
Income: $550 per week
We want income to be greater than expenses
What is the distance between (-3,7) and (6,1)
Answer:
3[tex]\sqrt{13}[/tex]
Step-by-step explanation:
(✿◡‿◡) <--- she wants brainliest
Find it ! Find the perimeter
Answer:
P=60
Step-by-step explanation:
P=2(l+w)
P=2(14+16)
P=2(30)
P=60
Perimeter of a rectangle with 16in length and 14in width is 60 in.
Perimeter of a rectangle = 2(l+b)
here l = length and b= width
Given : l= 16 in and b= 14 in
perimeter = 2(l+b)
= 2(16+14)
= 2(30)
=60 inches.
The perimeter of rectangle is 60 inches
To learn more about perimeter refer to,
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Can somebody please help me !!!!!!!!!47$4&
Answer:
30 celsius
Step-by-step explanation:
(86°F − 32) × 5/9 = 30°C
help please help this is the last question i have for tonight and im struggling big time respost becuz i have one try left aagsggh
Answer:
what did you tried last time
Find the value of x in the triangle shown below.
X=??
14
14
50°
18
Geometry please help-
If HI and JI are tangent segments, what is the measure of angle HJI?
Answer:
68°
Step-by-step explanation:
We can find this by remembering that tangents meet a circle at a ninety degree angle with the diameter or a radius that touches the point of intersection. By understanding that because these two tangents intersect at a point outside the circle there angle measure is the same so we can use the 180° total in a triangle to find the remaining degrees to be divided into the two measures we need to find. Because 180 - 48 equals 132 we divide this by 2 to get our angle measure of 68 degrees.
Mr. Foote's deck is 12 ft. 6 in wide. Its length is twice the width plus 3 more inches. How long is the deck?
Answer:
25 ft 3 in
Step-by-step explanation:
Mr foote deck is 12 ft 6 in wide
It's length is twice its width with additional 3 inches
Therefore the length can be calculated as follows
12 ft 6 in + 12ft 6 in + 3 in
= (12+12)ft (6+6)in + 3 in
= 24+1 3in
= 25 ft 3 in
Hence the length of the deck is 25 ft 3 in
Which graph represents the function g(x) = 3/(x+2) -4?
Answer:
x=-2, y=-4
Step-by-step explanation:I took the test on k12
The required graph of the given function g(x) = 3/(x+2) -4 is given in the image attached below,
Given that,
The graph for the function g(x) = 3/(x +2) - 4 is to be determined.
The graph is a demonstration of curves that gives the relationship between the x and y-axis.
Here,
g(x) = 3/(x+2) - 4
Since the function has an inverse operator as 1 / (x + 2) the graph for the given function shown in the graph,
Thus, the required graph of the given function g(x) = 3/(x+2) -4 is given in the image attached below,
Learn more about graphs here:
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What is the value of x when -8 x - (8x) = -48?
Answer:
x=3
Step-by-step explanation:
-8x-(8x)=-48
-8x-8x=-48
Collect like terms
-16x=-48
Divide both sides by-16
x=3
Can anyone tell me what the answer is for 4097 + 754 + 3188?
Answer:
8,039
Step-by-step explanation:
4097
3188
754
---------
8039
Answer:
4097 + 754 + 3188 = 8039
Step-by-step explanation:
4097 + 754 + 3188
4851 + 3188
8039
1/3 HB=T solve for B
Answer:
yes I agree B=3t/h
Step-by-step explanation:
hope this helps :)
Please help out and make sure to show your work please
Answer:
80 in
Step-by-step explanation:
To find the whole thing: 12 * 12 = 144
To find one square: 144/9 = 16
To find shaded areas: 16 * 5 = 80
Hope this helps =]
Which of the following options have the same value as 62\%62%62, percent of 454545
Answer:
Here, the given expression is,
62 % of 45
( 1 % = )
( Dividing 62 by 100 )
Hence, Option A and C are correct
could someone plz help me on this :,)
Answer:
C if its a parallelogram than opposite sides are parallel
Please Help with this
Answer:
x = 10
Step-by-step explanation:
7x - 3 + 12x - 7 = 180 because angles on a straight line add up to 180 degrees so we equate this to 180. Now we just simplify and solve to get x on one side! :)
19x - 10 = 180
19x = 190
x = 10
I hope this helps!!
Decrease 360 by 15%
Answer:
54
Step-by-step explanation:
Step-by-step explanation:
First take 15percent of 360 and decrease the answer from 360
Find the slope of the line that passes through E(6, 8) and F(6, −2) .
Answer:
y=0
Step-by-step explanation:
The two points if graph make a horizontal line. A horizontal line slope is 0
Please help I would really appreciate it!!!!
Answer:
the answer is I'll either go with c or d
Mohsin, Yusuf and Luke are going to play a game.
At the end of the game, one of them will be in First place, one of them will be in
Second place and one of them will be in Third place.
Use the table below to list all the possible outcomes of the game.
First place
Second place
Third place
The possible outcomes of the game, in terms of first place, second place, and third place, are:
Mohsin, Yusuf, Luke
Mohsin, Luke, Yusuf
Yusuf, Mohsin, Luke
Yusuf, Luke, Mohsin
Luke, Mohsin, Yusuf
Luke, Yusuf, Mohsin
To list all the possible outcomes of the game, we need to consider the different permutations of the three players: Mohsin, Yusuf, and Luke. Since there are three players, there are a total of 3! (3 factorial) possible outcomes, which is equal to 3 x 2 x 1 = 6.
Using the table format, we can list the possible outcomes as follows:
Outcome 1: Mohsin, Yusuf, Luke
Outcome 2: Mohsin, Luke, Yusuf
Outcome 3: Yusuf, Mohsin, Luke
Outcome 4: Yusuf, Luke, Mohsin
Outcome 5: Luke, Mohsin, Yusuf
Outcome 6: Luke, Yusuf, Mohsin
Each outcome represents a different arrangement of the players in the first, second, and third places.
As a result, the following players might finish first, second, and third in the game: Mohsin, Yusuf, and Luke
Luke, Mohsin, and Yusuf
Luke, Yusuf, and Mohsin
Mohsin, Luke, and Yusuf
Yusuf, Mohsin, and Luke
Mohsin, Yusuf, and Luke
These outcomes represent all the different ways in which the players can finish the game.
for such more question on permutations
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heyy could you help me out with this question I have been stuck in this question??
If Evan has 3 Jars of Cookies and each jar holds 18 cookies how many cookies does Evan have?
Answer:54 cookies in total
Step-by-step explanation: 3x18=54
Answer: 54 cookies in all
Step-by-step explanation: Evan has 54 cookies because if you do 18x3 you get 54, or if you do 18+18+18 you get 54.
=
How can you use a table with equally-spaced inputs to determine whether a relationship is linear? Exponential?
Please Explain how it happens
Answer:
Step-by-step explanation:
[tex]LHS = \frac{\alpha +\beta }{\alpha \beta }\\\\=\frac{\alpha }{\alpha \beta }+\frac{\beta }{\alpha \beta }\\\\=\frac{1}{\beta }+\frac{1}{\alpha }[/tex]
Use KCF method for fraction division
Keep the first fraction, Change division to multiplication and filp the second fraction
[tex]RHS = \frac{\frac{18}{p}}{\frac{9}{p}}\\\\[/tex]
= [tex]\frac{18}{p}[/tex] ÷ [tex]\frac{9}{p}[/tex]
[tex]= \frac{18}{p}*\frac{p}{9}\\\\=\frac{18}{9}[/tex]
Find the total amount of interest earned on this savings account.
Time: 7 years
Interest Rate: 2.5%
Principal: $4,556
Interest:
$79.73
$797.30
$7,973
$79,730
Answer:
$797.30 or B on egunty :
)
Answer:
The answer is B.$797.30 on Edge 2021
Simplify: (2x3y5)3 Could you also explain how to do it?
Answer:
6x×9y×15
Step-by-step explanation:
that's the answear I got because you didn't add any math signs so assuming its all multiplication you take 3 and multiply it with each of the numbers with there variables