The value of y varies directly with x. If x = 4, then y = 36. Find the value of x when y = 144.

Answers

Answer 1

Answer:

16

Step-by-step explanation:

Direct variation formula: y = kx

Given

x = 4, y = 36

Finding the coefficient k:

36 = 4kk = 36/4k = 9

So the function is

y = 9x

Solving for x, when y = 144

144 = 9xx = 144/9x = 16

Related Questions

Find the area of the shaded region. Round your answer to the nearest tenth. Help!! Please!!

Answers

Answer:

Area in blue = 17.38m²

Step-by-step explanation:

I think it’s 81 m but I’m probably wrong lol

Guys quickly what is 1% of 75?

Answers

Answer:

the answer is 0.75

...................................

Isn’t it .75 ??

I’m not sure I forgot how to do this

Can someone help me out

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I believe that the answer is j 6

Help my sister again she got 5 or 3 more questions left I’m in high school and still forgot this

Answers

Answer:

-2

Step-by-step explanation:

The opposite of a positive is a negative

the opposite of 2 is -2

Answer:

Is this a joke- or fr-

Step-by-step explanation:

find the measure of angle in the circle

Answers

Answer:

x = 5 which mean that if you replace 5 with the x you will get 90 as your answer.

Step-by-step explanation:

Answer:

x=5

Step-by-step explanation:

∠17x+5≅∠18x

17x-18x=-5

-x=-5

x=5

17x5+5=90°

18x=90°

Can someone help and explain how you got the answer? Thanks^^

Answers

Answer:

C) (0,5)

Step-by-step explanation:

f(x) is y and x is x

The table is providing you with points

y-y over x-x gives you a slope of -5

Use the points and turn it into a point-slope equation and convert to y-intercept equation

y-15=-5(x+2)

y-15=-5x-10

y=-5x+5

So the y-intercept is 5 or (0,5)

what’s is the answer to (-20)-7= I’m confused

Answers

Answer:

140

Step-by-step explanation:

You just multiply them together! :)

Answer:

-27

Step-by-step explanation:

(-3/4)(-1 3/4)
evaluate ​

Answers

Answer:

5 1/4

Step-by-step explanation:

Determine whether the relation is a function. (-11, 2), (-9,2), (-7, 3). (-5; 3). (-3.3)
A. yes
B. no
please help, brainliest if right

Answers

Answer:

yes it is

Step-by-step explanation:

each input only has one output (there arent any repeating numbers for x)

Find the slope of the line in the simplest form.
A. m= 5/1
B. m= -1/5
C. m= -0.2
D. m= -5/1

Answers

The answer is D
(3,0),(2,5)
Slope = (Y2-Y1)/(X2-X1)= (5-0)/(2-3)
= -5/1

Help Me! Easy math homework help needed please! Find the value of x. Please do all 3!

Answers

Answer:

1. x = -4

2. x = -1/4 or -.25

3. m = 3

1. x = -2.16 or [tex]-2\frac{1}{6}[/tex] or 13/6

2. x = -1/4 or -0.25

3. m = 3

A cylinder has a diameter of 10 units. Its radius ___ is units. If its height is twice its radius, its height is____ units. Its volume is about ___cubic units ​

Answers

Volume of cylinder is 785.7 square units

Suppose 2,400 spectators attend at leas one game this soccer season. Use ther survey data to estimate the number of spectators who attended 5 or more games this season

Answers

Answer:

800 spectators

Step-by-step explanation:

Using the survey provided above, we can see that the survey population is a total of 150 spectators by adding up all of the spectators. Since only 50 spectators attended 5 or more games then that means that the percentage of the survey population that attended 5 or more games is ...

50 / 150 = 0.3333 or 33.33%

Therefore, if we are supposing that 2,400 spectators attended at least one game this season then we can multiply this population by the percentage of people who tend to attend 5 or more games in order to actually calculate the total number of people who will attend 5 or more games this season.

2,400 * 0.3333 = 800 spectators

Can i get a little help with this?

Answers

Answer:

c

Step-by-step explanation:

hope this helps

:)

Answer:

C

Step-by-step explanation:

Simplify
(-1+4i)(9-4i)

Answers

Answer:

B 7+40i

Step-by-step explanation:

Answer:
7+40i

I hope this helped :)

Solve the system of equations from Problem #4.

A:(4, -1)
B:(-1, -3)
C:(16, 4)
D:(9, 1)

Answers

Answer:

A. (4,-1)

Step-by-step explanation:

solving by addition/elimination

2x-5y=13 *(2)

4x-10y=26

-8x+10y=-42

_________

-4x= -16

x= 4

2(4)-5y = 13

8-5y=13

-5y=5

y= -1

Graph the parabola.
y=3(x-2)²+1
Plot five points on the parabola: the vertex, two points to the left of the vertex, and two points to the right of the vertex. Then click on the graph-a-function
button.

Answers

Answer
Vertex:(2,1)
Focus:(2, 13/12)
Axis of symmetry: x=2
Directrix: y=11/12

A parabola is a curve with a focus and a directrix. The focus is any point is at an equal distance while the directrix  is a fixed line. The vertex of the parabola is (2,1), the two points to the right are (3,4) & (4,13) while the two points to the left are (1,4) & (0,13).

Given that:

[tex]y = 3(x - 2)^2 + 1[/tex]

A parabola is represented as:

[tex]y = a(x - h)^2 + k[/tex]

Where:

[tex]Vertex = (h,k)[/tex]

So, by comparison; the vertex of the function is:

[tex]Vertex = (2,1)[/tex]

To plot two points to the right, we select x values greater than 2.

Let: [tex]x = 3[/tex]

So, we have:

[tex]y = 3(x - 2)^2 + 1[/tex]

[tex]y = 3(3 - 2)^2 + 1[/tex]

[tex]y = 4[/tex]

Let [tex]x = 4[/tex]

[tex]y = 3(x - 2)^2 + 1[/tex]

[tex]y = 3(4 - 2)^2 + 1[/tex]

[tex]y =13[/tex]

To plot two points to the left, we select x values less than 2.

Let: [tex]x=1[/tex]

So, we have:

[tex]y = 3(x - 2)^2 + 1[/tex]

[tex]y = 3(1 - 2)^2 + 1[/tex]

[tex]y = 4[/tex]

Let [tex]x = 0[/tex]

[tex]y = 3(x - 2)^2 + 1[/tex]

[tex]y = 3(0 - 2)^2 + 1[/tex]

[tex]y =13[/tex]

In conclusion:

The vertex of the parabola is (2,1)The two points on the right are (3,4) and (4,13)The two points on the left are (1,4) and (0,13)

See attachment for graph

Read more about parabola at:

https://brainly.com/question/20333425

HELP ASAP
Todd purchased 8 gallons of gasoline for $30. The equation y = 3.68x represents the cost in dollars, y, Hope paid for purchasing x gallons of gasoline. Which statement is true?


A
Todd paid $0.07 more per gallon of gasoline than Hope.
B
Todd paid $0.07 less per gallon of gasoline than Hope.
C
Todd paid $0.08 more per gallon of gasoline than Hope.
D
Todd paid $0.08 less per gallon of gasoline than Hope.

Answers

Answer:the answer would be A

Step-by-step explanation:

30 divided by 8 = 3.75 which is the ammount of money per galon that Todd spent. There is a 7 cent difference between the ammount todd payed per gallon and the ammount Hope payed for gallon.

Todd paid $0.07 more per gallon of gasoline than Hope is the correct alternative.

What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.

Given is that Todd purchased 8 gallons of gasoline for $30. The equation y = 3.68x represents the cost in dollars, y, Hope paid for purchasing x gallons of gasoline.

Unit rate of gasoline in case of Todd will be -

{T} = (30/8) = $3.75

Unit rate of gasoline in case of Hope -

{T} = (30/8) = $3.68

We can write -

$3.75 - $3.68

$0.07

Therefore, Todd paid $0.07 more per gallon of gasoline than Hope is the correct alternative.

To solve more questions on algebraic expressions, visit the link below -

brainly.com/question/1041084

#SPJ2

( 10 points ) What is the value of the expression 5/6 + 2/3


A. 27/18

B. 9/6

C. 7/9

D. 21/27

E. 3/2

Answers

Answer:

E. 3/2

Step-by-step explanation:

5/6 + 2/3 = 3/2

Below are two parallel lines with a third line intersecting them.



x =x=x, equals
^\circ

degrees

Answers

Answer:

x=50

Step-by-step explanation:

That is becasue they are in the same spot on different parallel lines.

Which expression is equivalent to the question?

Answers

Answer:the third one I suppose

Step-by-step explanation:

please help asap!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer: 8

Step-by-step explanation:


How do I do this?
Help:)

Answers

Answer:

Step-by-step explanation:

To graph that you would start at 4 because that's your y-intercept then you would move down by 1 because z is considered 1 and the negative is only applied to the rise and the run is 3 so from point 3 you would move to the right 3 times and that would be your second point.

please help :(
What is the equation of the line that passes through the point (2,-6) and has a slope of -1?

Answers

Answer:

y = -x - 4

Step-by-step explanation:

Plug in the point and slope into the equation y = mx + b, and solve for b:

y = mx + b

-6 = -1(2) + b

-6 = -2 + b

-4 = b

Then, plug in b and the slope into y = mx + b

y = -1x - 4

y = -x - 4 is the equation of the line

SOMEONE HELP!!b ASAP ! I’ll give brainliest!!! Please and ty !!

Answers

Answer: first multiply the radius by 3.14 them multiply that by the heigh. Then go to cylinder b and do the same. Compare the difference between amounts in the cylinders and you have your answer

Step-by-step explanation:

Find from first principles the derivative of cos x​

Answers

Answer:

Please see the explanation.

Step-by-step explanation:

Let

[tex]f\left(x\right)=cosx[/tex]

By the first principle

[tex]f\:'\left(x\right)=\lim _{h\to 0}\left(\frac{f\left(x+h\right)-f\left(x\right)}{h}\right)[/tex]

          [tex]=\lim _{h\to 0}\left(\frac{cos\:\left(x+h\right)-cos\:x}{h}\right)[/tex]

           [tex]=\lim _{h\to 0}\left[\frac{cos\:x\:cos\:h-sin\:x\:sin\:h\:-\:cos\:x}{h}\right][/tex]

           [tex]=\lim _{h\to 0}\left[\frac{-cos\:x\left(1-cos\:h\right)-sin\:x\:sin\:h\:}{h}\right][/tex]

           [tex]=\lim _{h\to 0}\left[\frac{-cos\:x\left(1-cos\:h\right)\:}{h}-\frac{sin\:x\:sin\:h}{h}\right][/tex]

           [tex]=-cosx\:\left(\lim \:_{h\to \:0\:}\frac{1-cos\:h}{h}\right)-sin\:x\:\lim \:\:_{h\to \:\:0}\:\left(\frac{sin\:h}{h}\right)[/tex]

           [tex]=-cosx\:\left(0\right)-sinx\left(1\right)[/tex]

            [tex]=-sin\:x[/tex]

which pair of lines is the graph...

Answers

which one is the other one at top?
I know that r is one of them but the other is not givin in the photo supplied

A ride at an amusement park has two options for cars, one that holds 6 passengers and one that holds 3 passengers. If the ride designer wants to make sure that each run holds at least 12 passengers, which graph represents the overall equation and shows the possible combinations of the number of 6-passenger cars, x, and the number of 3-passenger cars y (not all points may not apply to the scenario)? On a coordinate plane, a solid straight line has a negative slope and goes through (0, 2) and (4, 0). Everything to the left of the line is shaded. On a coordinate plane, a solid straight line has a negative slope and goes through (0, 2) and (4, 0). Everything above and to the right of the line is shaded. On a coordinate plane, a solid straight line has a negative slope and goes through (0, 4) and (2, 0). Everything to the left of the line is shaded. On a coordinate plane, a solid straight line has a negative slope and goes through (0, 4) and (2, 0). Everything to the right of the line is shaded.

Answers

Answer:

The answer is the last one

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

2x+y<-6
graph the inequality on the axes below.

Answers

Answer:

1 point on (0,-6) and the other on (-3,0)

the left side of the graph should be shaded if you need to

Step-by-step explanation:

If you subtract 18 from my number and multiply the difference by -2​, the result is -20​. What is Sara​s ​number

Answers

Answer:

28!

Step-by-step explanation:

28 - 18 = 10,

10 x -2 = -20

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