Each table shows a proportional relationship between x and y. Match each table with its constant of proportionality.
x y
1 20
2 40
3 60
x y
2 80
8 320
12 480
x y
2 0.4
4 0.8
9 1.8
x y
7.5 4.5
10 6
17.5 10.5
0.6
arrowRight
0.2
arrowRight
20
arrowRight
40
arrowRight
Pls help:( HELP
As table shows a proportional relationship between x and y then constant of proportionality are 20, 40, 0.2 and 20 respectively
In the first table, the constant of proportionality is 20 because each value of y is obtained by multiplying the corresponding value of x by 20.
In the second table, the constant of proportionality is 40 because each value of y is obtained by multiplying the corresponding value of x by 40.
In the third table, the constant of proportionality is 0.2 because each value of y is obtained by multiplying the corresponding value of x by 0.2.
In the fourth table, the constant of proportionality is 20 because each value of y is obtained by multiplying the corresponding value of x by 20.
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4000
Amount
saved ($)
2000
o
6
2. 4
Months in plan
The graph shows the activity in a savings account.
a. What was the amount of the initial deposit that started this savings account (don't use commas)?$
b. Find the slope.
c. Find the y-intercept.
d. Write an equation in slope-interce
form for the activity in this savings account.
Answer:
$1000 ; 500 ; 1000 ; y = 500x + 1000
Step-by-step explanation:
From the graph, the initial deposit which started the savings account is $1000 ; this is the value on the y - intercept, the value in the account at time or period = 0.
The slope :
x1 = 0 ; y1 = 1000
x2 = 6 ; y2 = 4000
Slope = Rise / Run
Rise = y2 - y1 = 4000 - 1000 = 3000
Run = x2 - x1 = 6 - 0 = 6
Hence,
Slope = 3000 / 6
Slope = 500
y - intercept = 1000 (from. Graph)
Equation in slope intercept form:
General form : y = mx + c
m = slope ; c = intercept
Equation is written as ;
y = 500x + 1000
I ONLY need help with the tables ONLY! I’LL GIVE BRAINLIEST FOR THE RIGHT ANSWER?! I please include what you did for both tables please.
Answer:
The first table.
Step-by-step explanation:
Every single time, the x is being multiplied by 3 to get the y, and that means its proportional. Also, the second one is for sure NOT proportional
What is the slope of the line y = 2x + 5?
Hello! (:
y=2x-5
This equation is written in slope-intercept form (y=mx+b)
Where
m is the slope of the line (2)
b is the y-intercept (5)
Hope it helps! Please ask if you have any query.
~An excited gal
[tex]MagicalNature[/tex]
The slope of the line y = 2x + 5 is 2 obtained by comparing it with slope intercept form y=mx+b, where m is slope.
The slope represents the rate at which the line is increasing or decreasing as you move along the x-axis.
The slope of a linear equation in the form y = mx + b is represented by "m."
In this case, "m" is 2, which means the slope of the line y = 2x + 5 is 2.
Since the slope is positive (2), it means that as x increases by 1 unit, y increases by 2 units, and as x decreases by 1 unit, y decreases by 2 units.
The slope of 2 indicates that the line is inclined, and it rises at a steady rate of 2 units for every 1 unit moved to the right along the x-axis.
Hence, slope of the line y = 2x + 5 is 2.
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Look at the graph shown below:
Which equation best represents the line?
A: y = 1 over 3 x - 1
B: y = 3x - 1
C: y = -x + 1 over 3
D: y = 3x + 1
7th grade math help me please :)
Answer:
7x + 1 and 2a - 1
Step-by-step explanation:
(a)
2x + 1 + 5x ← collect like terms
= (2x + 5x) + 1
= 7x + 1
(b)
- 3a + 2 + 5a - 3 ← collect like terms
= (- 3a + 5a) + (2 - 3)
= 2a + (- 1)
= 2a - 1
The amount of increase , divided by the original amount, equals the ____of increase
Answer: percent
Step-by-step explanation: i know stuff and btw i hope this helps
If given f(x) = –4x – 2 and g(x) = 2x, what is (f · g)(x)?
A.
(f · g)(x) = –6x – 4
B.
(f · g)(x) = –8x2 – 4x
C.
(f · g)(x) = –6x – 2
D.
(f · g)(x) = –16x2 – 4x
Step-by-step explanation:
Given
f(x) = - 4x - 2
g(x) = 2x
(f • g) (x) = ?
We know
f(g(x)) = f ( 2x )
= - 4 ( 2x ) - 2
= - 8x - 2
Sarah started collecting coins last year.
She already collected 58, when she received another 21 from her parents.
She is expecting to get 12 more for her birthday next week.
How many coins is she going to have at the end of next week if her expectation is right?
Answer:91 coins
Step-by-step explanation:You add them all together the numbers which are 58 and 21 and 12.It gives you 91 coins in total.
Hope it helps :)
will give brainlest 5 stars and thanks
Answer:
96m
Step-by-step explanation:
L x W= A
12x8=96m
Answer:
above the 8 it would be another 8 then to the side it would be a 12 the ad them all up together or like this 8+8 =16 and 12+12=24 16+24 is 40
Step-by-step explanation:
Please help!!! I’ll mark brainliest!! (Look at picture)
Answer:
[tex]\huge\boxed{\sf (x*4) + (x*5) = 54}[/tex]
Step-by-step explanation:
[tex]\sf x(4+5) = 54\\\\Applying \ distributive \ property\\\\(x*4) + (x*5) = 54\\\\Distributive\ Property\ is:\\\\A(B+C) = (A*B)+(A*C)\\\\\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Help me with this pls
Answer:
Add em both and set em equal to 180
20+(6x-2)=180
18+6x=180
6x=162
X=27
Answer:
6x-2+20=90
or,6x+18=90
or,6x=90-18
or,6x=72
or,x=72÷6
x=12
I = $60, P = $750, r = 4%, t = ?. Find the amount of time.
Answer:
you need to be more specific.
A cooler contains bottles of orange juice,apple juice and grapefruit juice in the ratio of 3:4:3. There are 960 bottles of orange juice in the cooler Calculate the number of bottles of apple juice that are in the cooler
Answer:
1280
Step-by-step explanation:
The first 3 part of the ratio corresponds to 960 bottles of orange juice
Dividing 960 by 3 gives the value of one part of the ratio.
960 ÷ 3 = 320 ← value of 1 part of the ratio, then
apple juice = 4 × 320 = 1280 bottles
sinA.secA
__________ = tan²A
cosecA.cosA
Answer:
Please check explanations for answer
Step-by-step explanation:
Here, we want to show that the left hand side equals the right hand side
We can express the left hand side as:
sin A/ cos A * sec A/cosec A
kindly recall that;
sin A/cos A = tan A
Also;
sec A = 1/ cos A
cosec A = 1/ sin A
Thus, we have that ;
tan A * 1/cos A / 1 / sin A
= tan A * sin A/cos A
This is;
tan A * tan A = tan^2 A
Jenny purchased a prepaid phone card for $30.Long distance calls cost 12 cents a minute using this card. Jenny used her card only once to make a long distance call. If the remaining credit on her card is $24.84, how many minutes did her call last.
Answer:
43 min
Step-by-step explanation:
subtract $24.84 from $30 and you get $5.16 and you divide that by 12 cents which then you get 43 min
What is the equation of the circle shown below?
Step-by-step explanation:
Equation of circle: (x + 2)² + (y - 2)² = r²
Radius of the circle is 3 (from -2 to 1).
Hence we have
(x + 2)² + (y - 2)² = 3² or (x + 2)² + (y - 2)² = 9.
HELPPPPPPP PLEASEEEEE
Answer:
5^15
Step-by-step explanation:
if they have the same base then you add the two top vaules therfore giving you c.
Brainliest plzzzzzzz
Will mark brainliest
A team spent 20 minutes on passing drills and 40 minutes on shooting drills.
What is the ratio of time spent on shooting drills to time spent on passing drills?
1 to 3
3 to 1
2 to 1
1 to 2
Paul's Pizzeria sells 45 cheese pizzas and 20 pepperoni pizzas each week.
What is the ratio of cheese pizzas to pepperoni pizzas sold each week by Paul's Pizzeria?
4:2
3:1
9:4
9:2
Which simplified ratio correctly compares 12 yards to 20 feet?
3:5
5:3
5:9
9:5
Answer:
1. 1 to 2 2. 9 to 4 3. 5 to 3
Step-by-step explanation:
Its just half which is one to 2, this one is pretty simple, so trust me
you just find the highest number that can go into both ones.
12 yards and 20 feet, one yard in 3 feet
Answer:
the ratio is 20
Over 40
Step-by-step explanation:
it’s logical I got it correct and you just put them together
The original price of a video game is $32.99 before tax. When Mario bought the video game it rang up as $26.39 before tax. He then paid 8% sales tax on the discounted price.
Part A: What is the percent discount on the game? Show all work and steps in your solution. (5 points)
Part B: What is the total amount that Mario paid for the video game including tax? Show all work and steps in your solution.
Answer:
Part A: The percent discount on game is 20%.
Part B: Mario paid a total of $28.50 including sales tax.
Step-by-step explanation:
Given that:
Part A:
Original price of video game = $32.99
Discounted price = $26.39
Amount of discount = 32.99 - 26.39 = $6.60
Discount percent = [tex]\frac{Amount\ of\ discount}{Original\ price}*100[/tex]
Discount percent = [tex]\frac{6.60}{32.99}*100 = 0.20*100[/tex]
Discount percent = 20%
Part B:
Sales tax = 8% of discounted price
Amount of sales tax = [tex]\frac{8}{100}*26.39 = 0.08*26.39[/tex]
Amount of sales tax = $2.11
Total amount = $26.39 + $ 2.11 = $28.50
Hence,
Part A: The percent discount on game is 20%.
Part B: Mario paid a total of $28.50 including sales tax.
Simplify (4x - 6) + (5x + 1). (1 point)
-X-5
9x + 5
9x - 5
Ох
x - 5
Answer:
9x-5
Step-by-step explanation:
Add the common values together:
(4x-6)+(5x+1)
4x+5x -6+19x-5Answer:
|
−
2
|
+
2
−
2
3
x
−
1
2
Step-by-step explanation:
Solve the system of linear equations by elimination.
3x−30=y
7y−6=3x
please explain
Answer: y = 6; x = 12
Step-by-step explanation:
3x - 30 = y
Change this into an equation where x and y are in the same side.
3x - 30 = y
Subtract y from both sides
3x - y - 30 = 0
Add 30 to both sides
3x - y = 30
7y - 6 = 3x
Do the same thing I did to the first equation
7y - 6 = 3x
Subtract 3x from both sides
-3x + 7y - 6 = 0
Add 6 to both sides
-3x + 7y = 6
We can now use the system of elimination to find x and y.
3x - y = 30
-3x + 7y = 6
After adding both equations, you get:
6y = 36
Divide 6 from both sides
y = 6
Since we now know y, we can solve for x.
3x - 30 = y
Substitute y for 6
3x - 30 = 6
Add 30 to both sides
3x = 36
Divide both sides by 3
x = 12
Hope this helped!
Answer:
[tex]x = 12.y = 6[/tex]
Step-by-step explanation:
Restructuring
[3x - 30 = y
-3x - 6 =7y
[tex] \frac{ - 36}{ - 6} = \frac{ - 6y}{6} [/tex]
y=6
Sub 6 in equ II
7(6)-6=3x
[tex] \frac{36}{3} = \frac{3x}{3} [/tex]
x=12
You might need:
Calculator
Find the zeros of the function.
Enter the solutions from least to greatest.
g(x) = 4x2 – 484
lesser x =
greater 2 =
Answer:
x = -11, x = 11
Step-by-step explanation:
Zeros are when g(x) = 0:
[tex]0=4x^{2} -484[/tex]
[tex]0=4(x^{2} -121)[/tex]
[tex]0=x^{2} -121[/tex]
Factor:
[tex]0=(x-11)(x+11)[/tex]
[tex]0=x+11, 0=x-11[/tex]
[tex]x=-11, x=11[/tex]
1. What is your Hogwarts house?
2. Draco or Remus Lupin?
3. Dum.bledore or Serius Black?
4. Do you like K-POP?
5. (Optional) Jada had some dimes and quarters that had a total value of $12.50. The relationship between the number of dimes, d, and the number of quarters, q, can be expressed by the equation 01.d + 0.25 q = 12.5. If Jada has 4 quarters, how many dimes does she have?
6. What's your favorite song?
7. Recommend aesthetic songs.
8. Give me a name.
9. Harry or Ron?
10. Hermione or Ginny?
1. Maaf saya gak tahu
2. Benar
3. Salah
4. Jurang
5. Kurang
6. Tujuh
7. Delapan
8. Sembilan
9. Sepuluh
10. Aku Cinta Kamu^_^
Find the volume of each figure. Round your answers to the nearest hundredth, if necessary. Leave your answers in terms of pi for
answers that contain pi.
Answer:
D. 125π km³
Step-by-step explanation:
Volume of a cylinder = πr²h
Where,
radius, r = 5 km
Height, h= 5 km
Volume of a cylinder = πr²h
= π × (5 km)² × 5 km
= π × 25 km² × 5 km
= 125π km³
The answer is D. 125π km³
What is HJ + JM?
The number line from minus four to four by increment of one and each tick mark is labeled. In this number line point minus four is also labeled as G, minus three is labeled as H, minus two is labeled as I, minus one is labeled as J, zero is labeled as K, one is labeled as L, two is labeled as M, three is labeled as N, and four is labeled as O.
Answer:
HJ + JM = 5
Step-by-step explanation:
The number line is majorly used to show the positions of directed numbers. For the given question, the number line has the required points as shown in the attachment to this answer.
From the number line,
HJ = -1 - (-3)
= -1 + 3
= 2
HJ = -2
JM = 2 - (-1)
= 2 + 1
= 3
Thus,
HJ + JM = 2 + 3
= 5
HJ + JM = 5
What does sas stand for
Answer: Statistical Analysis System
Step-by-step explanation:
28 POINTS!!!!!! Solve for x. Please Help
Answer:
The third choice, [tex]x\leq -8[/tex]
Step-by-step explanation:
One way to do it is to substitute in the potential answers. I'll show you here.
Choice 1
[tex]2(-2)+3\leq (-2)-5[/tex]
[tex]-4+3\leq -2-5[/tex]
[tex]-1\leq -7[/tex]
We can see that this is false, so the answer cannot be choice 1.
Choice 2
[tex]2(2)+3\leq (2)-5[/tex]
[tex]4+3\leq 2- 5[/tex]
[tex]7\leq -3[/tex]
This is also false, so the answer cannot be choice 2.
Choice 3
[tex]2(- 8)+ 3\leq (-8)-5[/tex]
[tex]-16+3\leq -8-5[/tex]
[tex]-13\leq -13[/tex]
This is true. Let's see if choice 4 works.
Choice 4
[tex]2(8)+3\leq (8)-5[/tex]
[tex]16+3\leq 8-5[/tex]
[tex]19\leq 3[/tex]
This is not true. Therefore, 3 is correct.
giving brainleyest
The table shows input and output values which table represents functions
Answer:
Option d) : Neither A nor BStep-by-step explanation:
To determine if it is a function, check if any x value repeated. For it to be a function, every x value should only be paired with one value
In both the table you can see that values are paired with more than one value meaning they aren't function...
Hope this helps u... ^_^❤️You went bowling last weekend with your friends, and you had to pay $42.75 in total to rent your shoes and play multiple games. If the shoes cost you $9.00, and you paid $6.75 per game, how many games did you bowl?
Answer:
5
Step-by-step explanation:
42.75 - 9 = 33.75 (shoes)
33.75/6.75= 5 games
Answer:
Im d u m b
Step-by-step explanation: