~~Please help!! Will give brainliest to first correct sample answer!!!~~
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Consider the system of equations.
y = 3x + 2
y = -2/3x − 4
Explain why these particular equations can be graphed immediately.
Answers
Answer:
because you have the y intercept to plot and the slope to go off of from there
same for the second one
Slope-intercept form: y = mx + b
plot y-intercept first (0,b)
then go rise over run for the slope to find other points.
Draw line through points
mhm yup
Related Questions
Solve below pls show work
Answers
Answer:
i believe its 90cm^2
Step-by-step explanation:
20x3/4=15 (reduce side 1)
8x3/4=6 (reduce side 2)
6x15=90 (multiply the sides to find the area)
PLS HELP WORTH 35 POINTS!!
in wich of the tables are x and y inversely proportional
A
x=1,2,3,4
y=6,3,2,1.5
B
x=2,3,5,7
y=7.5,5,3,2
C
x=1,3,4,24
y=24,8,6,1
D:
x=0.1,0.3,25,100
y=200,40,0.8,0.2
Answers
Answer:
A, C
Step-by-step explanation:
If it is inversely proportional then y = k/x
Let's try one by one for the options. (im replacing y and x in the equation and finding k to see if k is the same all throughout)
A.
6 = k/1 (k=6)
3 = k/2 (k=6)
2 = k/3 (k=6)
1.5 = k/4 (k=6)
Yes! It's the same everywhere so this is correct!
B.
7.5 = k/2 (k=15)
5 = k/3 (k=15)
3 = k/5 (k=15)
2 = k/7 (k=14)
For the last one k is not the same so nope. It is wrong.
C.
24 = k/1 (k=24)
8 = k/3 (k=24)
k = 6×4 = 24
k = 24×1 = 24
This is correct too.
D.
k = 0.1×200 = 20
k = 0.3×40 = 12
k = 0.8 × 25 = 20
We can already see that k is not the same everywhere.
Only A and C, x and y are inversely proportional for all of the values
Answer: c
Step-by-step explanation:
I need help with this question, I'm not very good at math and all help is appreciated!
Answers
Answer:
A
Step-by-step explanation:
We can solve for H by isolating it on one side of the equation, as follows:
J/H - I/H = G
Taking H as the common denominator:
(J - I)/H = G
Multiplying both sides by H:
J - I = GH
Adding I to both sides:
J = GH + I
Dividing both sides by G:
H = (J - I)/G
So the answer is
(A)
H = (J - I)/G.
Answer: A
Step-by-step explanation:
\(\frac{J}{H} = G + \frac{I}{H}\) >Since you are solving for H bring I/H to the other side
by subtracting I/H from both sides
\(\frac{J}{H}- \frac{I}{H} = G\) >There is a common denominator so you can
combine the fractions
\(\frac{J-I}{H} = G\) >Multiply both sides by H or cross multiply whichever
way your mind things about how to get H on top
\(J-I = G(H)\) >Divide both sides by G
\(\frac{J-I}{G} = H\) >Answer is A
Distributive property
0.5(10y-4x+25)
Answers
Holland added three decimals that made a sum of 2. One of the decimals was 0.34.
What are two other decimals Holland could have used to make a sum of 2? Explain how you know.
Answers
0.96 + 0.7 = 1.66
Holland could have used 0.96 and 0.7 (or any other 2 decimals that add up to 1.66).
The two other numbers could be 0.83.
First, do the equation 2 - 0.34 = 1.66.
Next, divide 1.66 ÷ 2 = 0.83.
Finally, add 0.83 + 0.83 + 0.34 = 2.
So the two other decimals Holland could do is 0.83.
During your research on a topic, you run across a blog site where several people posted that fuel prices have gone up 10% in the last six months. You can provide this data in your presentation as which of the following?
Typical of opinions across the country, users on blahblah-blog.com have mentioned that gas prices have gone up 10% in the last six months.
Although there are rumors about increased gas prices, there is no factual data.
People across the country are reporting that gas prices have gone up 10% in the last six months.
Gas prices have gone up 10% in the last six months.
Answers
Answer:
D) People across the country are reporting that gas prices have gone up 10% in the last six months.
Step-by-step explanation:
People in this field of work tend to make things factual, and nationwide (This is professional, and is the basis for this work), and this type of explanation of this occurrence matches it.
Hope This Helped!i need to get this right please help
Answers
Answer:
3 x 6
Step-by-step explanation:
Its asking, how did Koda get this answer.
Think about it, on the left u have 3 outside and on top you have 6 outside connect those 2 and you get 18 as your answer.
Don't get confused its just showing step by step on how you can do it and why.
at math
can anyone help me get these answered? (how to solve it and the answer)
Answers
is
—
of
for example, what percent of 60 is 57
57 x
— x —
60 100
now what you do is cross multiply. 57x100=5,700
60 • x = 60x
60x=5,700
——————
60
the answer for the first question is 95, so the answer is 95%.
If you need the other questions done just tell me!
68/100x47=31.96
Robin wants to buy a membership at a carwash this summer so that she can keep her car clean. She compared deals from Speedy Clean Carwash and Sudsy Bubbles Carwash to decide which membership to get. Robin arranged the information in the tables below.
How many times will Robin need to wash her car to spend the same amount at both carwashes?
P.S.: I attached the table below:)
Answers
Solve the system of linear equations by graphing.
y=2x−3
y=x+2
Answers
Answer:
the solution is (x,y)=(5,7)
Step-by-step explanation:
Which point is a solution to the inequality y ≤ 8x – 3?
A) (–2,–18)
B) (–3,–17)
C) (4,29)
D) (3,22)
PLEASE HELP :)
Answers
hope this helps :)
What is the total surface area of the figure?
Answers
Answer:
531 in²
Step-by-step explanation:
5 faces of the cube are facing the surface because the top one is shared with the triangular prism.
Surface area of a cube is S = 5 × (9)²
S = 405 in²
Now the triangular prism: S = (1/2)lP + B, where l is slant height and p is the perimeter of the base. (ignore B base area because this is also not facing the surface/shared with the cube).
S = (1/2)7×(4×9)
S = 126 in²
Add 126 + 405 to get 531 in²
Select all of the prime numbers from the list that can divide the number 15 exactly.
A 2
B 3
C 5
D 7
E 11
F 13
G 17
H 19
I 23
Answers
Answer: B3 and C5
Step-by-step explanation: The prime factors of 15 are 3 and 5 (because 3×5=15, and 3 and 5 are prime numbers).
Mark me brainliest!
Answer:
B 3 and C 5
Step-by-step explanation:
Hi I need help! Please answer! You will get brainlest! Walking at a steady pace, Ella walked 11 miles in 3 hours. Which mixed number shows how many miles she walked in a hour? It has to be correct! If it is wrong, then I will report you!
A: 2/3
B: 2 2/3
C: 3
D: 3 2/3.
Answers
Answer:
D
Step-by-step explanation:
because it is 3.666 and if you put it into a fraction it would be 3 2/3 duh
Math question someone pls explain how to answer it I am stuck pt.5
Answers
Just put it into the formula, A = b h + (b 1 + b 2 + b 3 ) L. b is the base of a triangular face, h is the height of a triangular face, b1 , b2 , and b3 are the sides of the triangular base, and L is the length of the prism.
help i dont understand writing expresions and equations
five notebooks that cost $0.75 each and 6 pencils how do i write this equation!!!?
Answers
Answer: (5 x 0.75) x6
Step-by-step explanation: First, multiply 0.75 x 5 then add 6.... DON'T FORGET THE PARENTHESES!!
I am currently 13 times as old as my granddaughter. Next year, I will be 11 times as old as my granddaughter. How old am I now?
Answers
Answer:
65 years old.
Step-by-step explanation:
Define the variables:
Let x be the age of the granddaughter.Let y be the age of the grandparent.Given:
I am currently 13 times as old as my granddaughter. Next year, I will be 11 times as old as my granddaughter.Create two equations with the given information and defined variables:
\(\begin{cases}y = 13x\\y + 1 = 11(x + 1)\end{cases}\)
Substitute the first equation into the second equation and solve for x:
\(\implies 13x+1=11(x+1)\)
\(\implies 13x+1=11x+11\)
\(\implies 2x=10\)
\(\implies x=5\)
Substitute the found value of x into the first equation and solve for y:
\(\implies y=13(5)\)
\(\implies y=65\)
Therefore, the age of the grandparent now is 65 years.
Given statements:
I am currently 13 times as old as my granddaughter. Next year, I will be 11 times as old as my granddaughter.Let us represent the character's age by variables. Assuming that the grandparent's age is G and the granddaughter's age is D. Now, using the obtained variables and the statements, create two equations that represents the provided statements. Then, we can compare the equations and simplify if needed to determine the value of the variables.
\(\implies \left[\begin{array}{ccc} \text{G = 13D} \\ \text{G + 1 = 11(D + 1)}\\\end{array}\right]\)
Since G = 13D is in the form of direct variation, we can substitute the value of G into the second equation to determine the value of D (the age of the granddaughter). Then, we can substitute the value of D into any of the two equations to determine the age of the grandparent.
⇒ G + 1 = 11(D + 1)⇒ G + 1 = 11(D + 1) [G = 13D]⇒ 13D + 1 = 11(D + 1)To solve for D, simplify both sides of the equation by using the distributive property. We need to simplify both sides of the equation so that we can isolate the variables on the other side of the equation.
⇒ 13D + 1 = 11(D + 1)⇒ 13D + 1 = 11D + 11Isolate the variables on one side. This step is necessary because it can cancel out the extra variable and simplify the other variable. To do this, you can either add or subtract on both sides of the equation.
Note: I am subtracting 11D on both sides of the equation since it is my preference. But you can also subtract 13D on both sides of the equation.
⇒ 13D + 1 - 11D = 11D + 11 - 11D⇒ 1 + 2D = 11To further isolate 2D, we need to subtract 1 on both sides of the equation to cancel out the 1 on the left-hand side of the equation. Then, we have:
⇒ 1 + 2D - 1 = 11 - 1⇒ 2D = 10But the variable is still not completely isolated since there is a coefficient being multiplied to D. To isolate the coefficient from the variable, we will need to divide the coefficient (2) on both sides of the equation.
⇒ 2D = 10⇒ 2D/2 = 10/2Then, simplify both sides of the equation. Eventually, we will have a variable on one side and a numerical value on the other side.
⇒ 2D/2 = 10/2⇒ D = 5Now we know the age of the granddaughter, we can substitute the age of the granddaughter into one of the equations and simplify it to determine the age of the grandparent. I am going to choose G = 13D since it is easier to simplify. Then, we will substitute the value of D into the equation.
⇒ G = 13D ⇒ G = 13(5)⇒ G = 65 yearsTherefore, the age of the grandparent is 65 years.
What is 1+1. I’m really wondering of what your thoughts will be on this one.
Answers
Answer: Depending on the situation, 2 or 11
Step-by-step explanation:
1 + 1 = 2
1+1 = 11
Answer:
Step-by-step explanation: So you take 1 and add it the other 1 and it equals 2
£140 is divided between Gavin, Jim & Krutika so that Gavin gets twice as much as Jim, and Jim gets three times as much as Krutika. How much does Gavin get?
Answers
Answer: 84
gavin: 84
jim:42
krutika:14
Step-by-step explanation:
oints (−6, 3) and (−6, −3) on the coordinate grid below show the positions of two dogs at a park:
A coordinate plane is shown. There is a point at negative 6, 3 labeled Dog 1. There is a point at negative 6, negative 3 labeled Dog 2.
Which statement best describes the relationship between the positions of the two players? (4 points)
a
Dog 1's position is Dog 2's position reflected across the y-axis; only the signs of the y-coordinates of Dog 1 and Dog 2 are different.
b
Dog 1's position is Dog 2's position reflected across the x-axis; only the signs of the y-coordinates of Dog 1 and Dog 2 are different.
c
Dog 1's position is Dog 2's position reflected across the x-axis; only the signs of the x-coordinates of Dog 1 and Dog 2 are different.
d
Dog 1's position is Dog 2's position reflected across the y-axis; only the signs of the x-coordinates of Dog 1 and Dog 2 are different.
Answers
Answer: B
Explanation:
Correct way to write down co-ordinates: x,y
Dog 1's position: (-6,3)
Dog 2's position: (-6,-3)
Similarity: Both co-ordinates have -6 on the X axis (left to right line)
Difference: Dog 2's Y co-ordinate is NEGATIVE 3 while dog 1's Y co-ordinate is POSITIVE 3
The position is going to be reflected across the X axis because their X co-ordinates are the same, so dog 1 will be on the positive section for the Y axis (line that goes up and down) while Dog 2 will be on the negative section of the Y axis since it has negative 3 as its Y co-ordinate.
Determine the value for k in the equation k − 187.25 = 273.68.
Answers
Answer: 460.93
Step-by-step explanation: k − 187.25 = 273.68.
This is a one-step equation, solving this is simple. you want to change the - to + and add on both sides
k − 187.25 = 273.68.
+ 187.25 +187.25
k=460.93
That would be 424.93, hope this helps.
Sarah babysits her neighbor's son to make money. Her earnings can be represented by the equation
M = 9h
where M is the money she earns and h is the hours she babysits.
Samara babysits her cousin to make money. Her earnings can be represented by the graph.
Answers
Answer:
7/108 or .006481
Step-by-step explanation:
Answer:
not gonna lie, i don't really know but maybe it could be $3 an hr.
Step-by-step explanation:
If you look at where the 2nd dot is on the graph, its lined up with 3 & 9. So, i would say to divide the 9 & the 3 to get 3 which shows $3 per hour.
Hope this is right and it helps! :)
For each ride, a taxi service charges an initial fee plus an additional fee based on the number of kilometers of the trip. The graph shows the cost for taxi rides. Select a true statement. The rise is 4 while the run is 2. The selection of answers are:
A: The slope is 2.1. This means that each kilometer costs $2.10.
B: The slope is 5. This means that each kilometer costs $5.
C: The y-intercept is 2.1. This means that the initial fee is $2.10.
D: The y-intercept is 5. This means that the ride lasts 5. kilometers.
Which one is right and why?
Answers
THIS MIGHT NOT BE WHAT YOU ARE LOOKING FOR AND MIGHT NOT BE CORRECT! READ FIRST!
The answer is A. The slope of the line is rise/run = 4/2 = 2.1. This means that each kilometer costs $2.10. The y-intercept is 2.1, which means that the initial fee is $2.10. So the correct statement is: The slope is 2.1. This means that each kilometer costs $2.10.
The other statements are incorrect. The slope is not 5, so each kilometer does not cost $5. The y-intercept is not 5, so the ride does not last 5 kilometers. The y-intercept is the value of the function when the input is 0, which in this case is the initial fee of $2.10.
Garth sells baseball caps outside the stadium. The graph shows the number of caps sold and the income from the sales. It represents a linear function.
Which statement best describes Garth's income from selling these caps?
A. He gets $5.00 per cap.
B. He gets $25.00 per cap.
C. He gets $34.00 per cap.
D. He gets $12.00 per cap.
Answers
100/8 = 12.50
I WILL GIVE BRAINLY PLEASE HELP
Answers
Answer:
ZOOM IN
Step-by-step explanation:
Ask your brother ok ?
please help me i will give brainliest to first person to anwser.
Answers
First we start with the formula for cylinders v=(pi)r(squared)h filled in Thats v=(3.14)(8 squared) (8) which brings us to the answer 1607.68 but you must round to the nearest tenth aka 1607.7
Answer:
The first option, V ≈ 1607.7 in²
Step-by-step explanation:
Find the volume of the given cylinder.
\(\begin{center}\framebox{\parbox{4cm}{\textbf{Volume of a Cylinder:}\\[2ex]The volume of a cylinder with radius $r$ and height $h$ is given by the formula:\\[2ex]\center{$V = \pi r^2 h$} \\ \\}}\end{center}\)
Given:
r = 8 in
h = 8 in
π = 3.14
Find:
V = ?? in³
\(\hrulefill\)
Now solving,
Substitute the given values into the formula:
=> V = (3.14)(8)²(8)
Using a calculator to simplify:
=> V = 1607.68 in²
Rounded to the nearest tenth:
∴ V ≈ 1607.7 in²
Thus, the first option is correct.
find the area of this circle. use 3 for pi.
Answers
Answer:
108
Step-by-step explanation:
a = pi(r^2) is the same as a = 3(6^2).
6 x 6 = 36
36 x 3 = 108
So the answer is 108 cm squared.
An atlas contains a map of Ohio (look at the picture for parts a,b,c, and d
Answers
Answer:
Step-by-step explanation:
a
What is the perimeter of the triangle?. I need help with this pretty please
Answers
P=a+b+c
Answer:
132
Step-by-step explanation:
13x2= 26 26+18 = 44
44x3=132
Suppose the digits cannot repeat. Find the number of possible two-digit codes and three-digit codes. Describe any pattern and use it to predict the number of possible five-digit codes.
There are possible two-digit codes, possible three-digit codes, and therefore there are possible five-digit codes. One pattern which could be used is multiplying together the number of for each place in the code.
Part 2
Repeat part 1, but allow digits to repeat.
There are possible two-digit codes, possible three-digit codes, and therefore there are possible five-digit codes.
Part 3
Suppose that a gym plans to issue numbered locker codes by choosing the digits at random. Should the gym use codes in which the digits can repeat or not? Complete the justification.
The gym should use numbers that . There are unique codes with repeated digits than without, so it is to guess the code for a locker.
Answers
Answer:
its mathematics the locker is my code
Step-by-step explanation:
that it that my mind