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S2x+3y=-12
(4x-4y=4
Answers
Answer:
I'll assume "S2x+3y=-12" is actually 2x+3y=-12 and that the question is to solve for x and y.
x = -(9/5)
y = -(14/5)
Step-by-step explanation:
2x+3y=-12
4x-4y=4
---
2x+3y=-12
8x+12y=-48 [Multiply the 1st equation by 4]
12x-12y=12 [Multiply the second equation by 3]
20x = -36 [Now we can add the two equations to remoce the y term]
x = -(36/20)
x = -(9/5) [The value for x]
====
2x+3y=-12 [Take either equation and s=use x=-(9/5) to find y]
2(-9/5)+3y=-12
-(18/5) + 3y = -12
+ 3y = -12 + (18/5)
y = -4 + (6/5)
y = -(20/5)+(6/5)
y = -(14/5) [This is the value of y that will work for both equations]
These equations both have the point (-9/5, -14/5) in common: they intersect here.
This problem can also be solved by graphing each equation and finding the point they inersect on the graph (attached).
Related Questions
Which situation is an example of an observational study?
Answers
Answer:
D- Recording the reaction time of participants in a study who were asked to press a button as soon as they see a certain picture on a screen.
Step-by-step explanation:
The situation is an example of an observational study is "Recording the reaction time of participants in a study who were asked to press a button as soon as they see a certain picture on a screen:.
What is an observational study?When researchers monitor the effect of a risk factor, diagnostic test, therapy, or other intervention without attempting to influence who is or is not exposed to it in observational studies.
For example: Consider someone standing on a popular street in a New York neighborhood asking passers-by how many dogs they have, then analyzing the data to see if more pet food businesses are needed in the area.
As we know that in an observational study, the sample whose test/survey is been taken is completely random.
Therefore, the situation that is an example of an observational study is " Having customers fill out a questionnaire about their favorite brand of toothpaste".
Learn more about Observational Study here:
brainly.com/question/5001950.
#SPJ7
Please find a... I will mark you brainliest
Answers
Given, consecutive / adjacent angles in a parallelogram are supplementary or make 180°. So, here (5a + 34)° & (3a + 26)° are supplementary angles.
=》5a + 34 + 3a + 26 = 180
=》5a + 3a + 34 + 26 = 180
=》8a + 60 = 180
=》8a = 120
=》a = 120/8
=》 a = 15
______
The picture is not clear, so I hope the values I took are correct.
꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂
Question 1 Draw a line through the point (−2,−2) with a slope of 1/4. Draw a line through the point (2, 0) with a slope of 1/4.
Answers
Answer:
line1：[tex]y=\frac{1}{4}x-\frac{3}{2}[/tex]
line2: [tex]y=\frac{1}{4}x -\frac{1}{2}[/tex]
Step-by-step explanation:
David made an error when determining the product of (–2.5)(–8.3).
Step 1: (–2.5)(–8.3) = (–8.3)(–2.5)
Step 2: = (–8.3)(–2) + (–8.3)(–0.5)
Step 3: = (–16.6) + (–4.15)
Step 4: = –20.75
In which step did David make his first error?
Answers
Answer:
step 3
Step-by-step explanation:
when you multiply an even amount of negative numbers you will always get a positive result thus the answe would be 16.6 + 4.15 as in positive numbers
which of the following descriptions could represent the Venn diagram?
Answers
Answer:
Step-by-step explanation:
it will be c
The correct description represent in Venn diagram is;
''Of 9 families, 4 own a pet The Venn diagram represents the families that own a pet.''
What is Venn diagram?
Venn diagram is an illustration that uses circles to show the relationships finite groups of things.
Given that;
Number of family = 9
Number of pets = 4
Now,
In the Venn diagram;
Own pet (circle) contain in number of family (rectangle), that's mean every family has 4 own pet.
Thus, The correct description represent in Venn diagram is;
''Of 9 families, 4 own a pet The Venn diagram represents the families that own a pet.''
Learn more about the Venn diagram visit:
https://brainly.com/question/24713052
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Find an equation of the line parallel to y= 1/3x +1 and that passes through the point (3,5)
Answers
Y-5= 1/3(x-3)
Solve(turn to y intercept form):
Y-5= 1/3x -1
Henry collects rainwater for his garden. His tank.
begins with 30 gallons of water. Over 5 days, the
tank collects 12 more gallons of water from the
rain. Then in 1 day, he uses 18 gallons to water
his garden. Then over 4 days, 7 gallons
evaporate. Then over 3 days, the tank collects
11 more gallons from the rain.
Answers
30+12-18-7+11= 28
Jack and Shelly have saved up a total of $29.00. Jack has saved 4 dollars more than 2/3 as much as Shelly. How much has Shelly saved?
Answers
Answer:
i think 15 if thats on your answer sheet
Step-by-step explanation:
Step-by-step explanation:
4+12/3)+×=29
4+2/3x+3/3x=29
4+5/3×=29
5/3x=29-4=25
5/3x=25
(5/3x) divided by (5/3)=25 divided by (5/3)
x=15
When 4/15 is written as a decimal, how many digits are in the smallest sequence of repeating digits? A. 3 B. 2 C. 1 D. 0
NO LINKS OR FILES TY!!!!
Answers
Answer:
It's B. 2Step-by-step explanation:
I Took the quiz In the question it says, "smallest sequence of repeating digits". The answer 2 makes senseHope This Helps Bye :]
Find the value of x.
M1= 3x + 7 and m5 = 25
Answers
Answer:
x=9
Step-by-step explanation:
m5=m1 so
25=3x+7
18=3x
x=9
Sam has $20. She buys 6 bags of chips and has $2 left over. Write and solve an equation to determine the cost of one bag of chips.
Answers
20-2=6x
18=6x
X=18/6
X=3
Which sign makes thelsentence true? 6_6/1
=
<
Answers
Answer: =
Step-by-step explanation:
6/1 is equal to 6, which 6 is equal to 6.
6 ? 6/1
6 = 6
Two shops, Lidal and Oldi, sell the same brand of toilet rolls but with different package sizes.
Calculate the price per roll for each shop.
Write which shop is the best value for money in the comment box.
Answers
Step-by-step explanation:
Lidal : 9 rolls for £3.51
1 roll for 3.51/9 = £0.39
Oldi : 4 rolls for £1.52
1 roll for 1.52/4 = £0.38
so, Oldi has the best value for money when buying toilet rolls.
Find the slope of the line that passes through the points (4,1) and (-2.7).
What is the slope of a line perpendicular to this line?
Answers
Answer:
the slope=-1 the slope perp=1
Step-by-step explanation:
to find slope perpendicular you just have to multiply your slope by something and have it equal -1
for example
1/2x=-1
the slope perpendicular to a line with the slope of 1/2 would be -2 beacause 1/2x-2=-1
so the slope x perpendicular slope = -1
Can someone please help me solve this…
Answers
Answer:
C = 4s + 6a
C = 4(3) + 6(2)
C = 12 + 12
C = 24
(c being total cost)
b. 4(3) + 6(2) = 12 + 12 = $24.00
Hope this helps!
PLZ HELP!!! WILL GIVE BRAINLIEST!!! State whether each conditional is true or false. Write the contra positive for the conditional and state whether the contrapositive is true or false.
1. If you ride a roller coaster, then you will experience sudden drops.
2. If you only have $15, then you can buy a meal that costs $15.65.
Answers
Step-by-step explanation:
TrueFalseHope it is helpfulAnswer: question 1 If you are going over the top of a hill or rollercoaster quickly, you could feel your stomach drop or stomach sink. In actuality, it's probably the sensation of all your internal organs shifting slightly in your ribcage as your body defies gravity for a few seconds.
Step-by-step explanation: i do not know the 2 question im sorry mabye question 1 may help if not thaks ok bye :)
10^2= ?
If you like Rollercoaster vids pls subscribe to SR Vlogs (Rollercoasters) on yt ❤️❤️
Answers
Answer:
100
Step-by-step explanation:
Ok I will sub!
Which value of m makes the statement true?
76−2m≤11+3m
13
11
8
5
Answers
Step-by-step explanation:
-3m-2m<_ 11-76
-5m<_-65
m>_13
therefore, option 1, 13.
hope this helps you.
need help with this part
Answers
Answer:
1. 42 people can be seated
2. 16 tables should be used.
Step-by-step explanation:
Part 1:
Since we are given the function, p(n) = 4n + 2, we need to plug in 10 to "n." This is because "n" represents the number of tables as stated on the top of the pciture. And "p(n)" represents the number of people that can be seated.
p(n) = 4(10) + 2
p(n) = 40 + 2
p(n) = 42
Part 2:
For this question, since we are given 65 as the total number of people that can be seated, we would plug in 65 in "p(n)", to result in the following equation.
p(65) = 4n + 2
Then solve the equation and use the property of inverse operation.
65 = 4n + 2
65 - 2 = 4n + 2 - 2
63 = 4n
63/4 = 4n/4
15.75 = n
Although we're given 15.75 as the number of tables that should be used, we can't really have a 0.75 of a table, so we would round 0.75 to 1.
15 + 1 = 16
16 tables are required.
18(3+14) x 6(21+4)
With and without distributive property
Answers
45900
Step-by-step explanation:
With Distributive Property:
18(3 + 14) • 6(21 + 4)
54 + 252 • 126 + 24
306 • 150
45900
Without Distributive Property
18(3 + 14) • 6(21 + 4)
18(17) • 6(25)
306 • 150
45900
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Answers
Solution =
p(x) = 18x - 5x + 20
p(x) = 13x + 20
The length of the rectangular garden is 4 meters longer than the width. If the garden area is 60 square
meters, then the length of the garden is equal to ____ meters
Help me please
Answers
Step-by-step explanation:
Let x be the Width, and x+4 be the Length of the rectangle ; =>
Area = x*(x+4) = 60 ; =>
x^2 +4x - 60 = 0 ; Now solve the Quadratic equation using factoring to find x;
MARK ME BRAINLIEST!!Look at pic ! The length of each of two sides of a triangle is 15. The third side's length is 1572. Classify the triangle.
A) 30-60-90 scalene triangle
B) 30-60-90 isosceles triangle
C) 45-45-90 isosceles triangle
D) 45-45-90 scalene triangle
Answers
Answer The correct answer to the following question is not provided U need to do it your self lol jk answer is d
Step-by-step explanation:
Find the part Q for me please
Answers
Answer:
how. :. i don't know what gives me a example that
Tell whether the lines through the given points are parallel, perpendicular, or neither.
Line 1: (6, 5), (4,2)
Line 2: (-8, -1), (-2, 8)
Answers
Answer: Line 1: (2, 3) , (4, 12)
m = (12 - 3)/(4 - 2) = 9/2 This is the slope of the line
y = (9/2)x + b
3 = (9/2)(2) + b
3 = 9 + b
b = -6
y = (9/2)x - 6
Line 2: (5, 10) , (14,8)
m = (8 - 10)/(14 - 5) = -2/9
this slope is the opposite sign, and inverse of the first equation's slope. Therefore, the line is perpendicular.
y = mx + b
8 = (-2/9)(14) + b
8 = -28/9 + b
11.11 = b
y = (-2/9)x + 11.11
Step-by-step explanation: Hope this helps :)
The bookstore sold m books on Monday and t books on Tuesday. But on Wednesday, r books were
returned. Write the expression for the total books sold.
Answers
Answer:
m+t-r
Step-by-step explanation:
pls help ill give brainliest
Answers
Answer:
4
Step-by-step explanation:
-5g -6
Let g= -2
-5 (-2) -6
Multiply
10 -6
4
Answer:
A. 4
Step-by-step explanation:
So, we have an equation with a variable (g), and they've given us the value of g to be -2. All we have to do at this stage is plug in the value of g into the equation.
-5g-6 (g=-2)
-5(-2)-6
10-6=4
Doing the math by plugging in -2, you would get your answer to be 4. Let me know if you see any errors, and if you have any further questions at all.
A. p(x) = (2x - 1)^3(x - 2)^2
B. p(x) = (2x - 1)^2(x - 2)^2
C. p(x) = (2x - 1)^3(x - 2)^3
D. p(x) = (2x - 1)^2(x - 2)^3
Answers
Answer:
THE ANSWER IS
C. p(x) = (2x - 1)^3(x - 2)^3
Step-by-step explanation:
PLEASE FOLLOW
AND MAKE IT BRAINLIEST...
a lottery winner had to pay 30% of his winnings in taxes. how much did he win if he paid $75,000 in taxes?
Answers
$30.50 for 32 ounces of specialty cooking oil
Answers
Answer: So each ounce of specialty oil cost about 0.95
Step-by-step explanation:
