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July 30, 2014

Search: if y varies inversely as x and y

Number of results: 1,009

algebra
suppose that S varies directly as the 2/5 power of T, and that S=8 when T=32. Find S when T=243.
January 26, 2014 by Anonymous

algebra
If f(x) varies directly with x, and f(x) =45 when x=9, find the value of f(x) when x=3 answer choices are: A.5 B.9 C.15 D.27
February 19, 2014 by Ayriana

Algebra 2- Variation
If y varies jointly as x squared and the radical of z, and y = 49 when x =2 and z=25, determine y when x=-1 and z =16
March 5, 2014 by Amy

Math
if y varies directly as x find the direct variation equation for the situation: y=20 and x=16
October 19, 2007 by George

college algebra
Solve each variation problem. n varies directly as q, and n= 39 when q=3. Find n when q=8.
April 23, 2010 by BJ

Algebra 2
Find rarition constant and an equation of variation where y varies directly as x and y =60 when x = 10.
October 23, 2010 by Anonymous A

Algebra 2
M Varies jointly with A and T and inversley with H. Write and equation that represents the relationship.
December 14, 2010 by Karl

Please Help!! Math
If c varies directly as the square root of d, and c = 14 when d = 64, find c when d = 324.
June 5, 2013 by Jnr John

math
write the direct variation equation for the following:y varies directly with x and y=60 when x=10
June 11, 2013 by lina

math(algebra)
If f(x) varies directly with x, and f(x) = 45 when x=9, find the value of f(x) when x=3 answer choices are A. f(x)=8x B. f(x)=4/3x C. f(x)=6x D. f(x)=3/4x
February 19, 2014 by Ayriana

algebra
Determine whether y varies directly with x if so find the constant of variation k 3y=-7 x-18
March 4, 2014 by snow

maths
body of weight is inversely propotional to square of its distance from center of earth,radius of the earth is 6380 km, how much 80 kg man weigh 1600 km from the surface of earth
February 16, 2014 by Anonymous

chem
If the pressure of the original doubles does that mean the original will decrease by 1/2? Because pressure and volume are inversely proportion to each other?
March 22, 2012 by bkue

Science
Please Check 1.) If a quantity increases as a second quantity increases and decreases as the second quantity decreases the two quantities are said to be *a)Directly proportional b)Inversely proportional c)Completely unrelated d)Blue and red 2.) If a quantity increases as a ...
July 13, 2010 by Matt

math
I am having trouble with this problem, thanks! If y varies jointly as x and the cube of z, and y=378 when x=4 and z=3, find y when x=9 and z=2 .
September 30, 2008 by cal

Math
Suppose y varies directly with x and y=12 when x=6. Write an equation realting x and y. Please help, do not understand.
May 20, 2009 by Gaby

pre-calc graphing
Sketch the graph of f(x)= [ (1/2) tanx + 1 ] as x varies from pie/2 to 3pie/2
August 2, 2009 by kenny

physics
how can you say that thickness of a material varies as it is a constant value. discuss with in 50 words.
May 15, 2011 by diwakar

MAT/117
The weight of an object varies on different planets. Solve the equation w=Cr^-2 for r
September 20, 2011 by Anonymous

Algebra II
If y varies jointly as w and x, and y is 483 when x is 742 and w is 383, find y when x is 274 and w is 756.
November 21, 2011 by Joe

Algebra II
If y varies jointly as w and x, and y is 483 when x is 742 and w is 383, find y when x is 274 and w is 756.
November 22, 2011 by Ashley

Math
R varies jointly as S and the square of T. If R is 32.4 when S=0.2 and T=9, find R when S=0.5 and T=5. I believe the answer is R=25, could someone check this for me?
March 15, 2012 by Allie

Math
Finally, the toe of the stick varies in : A. length B. height C. width D. Area
July 8, 2012 by Amy

Calc
Find the constant of proportionality for the following situation: "y is jointly proportional to x and z and inversely proportional to w." w=2, x=5, y=4, and z=9 So i think the equation is y=xz/w But what is the constant of proportionalit supposed to mean?
October 2, 2011 by Jake

math
1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: , where C is a constant, and...
April 8, 2009 by tera

geometry
what equation represents the relationship of perimeter of a square varies directly as the length of it's side ?
February 18, 2012 by tom

math
find the equation that meets the given conditions: a varies directly as the square of r and a=9 pie when r=3
June 7, 2012 by mathstuck

Reading/Math
Does the toe of a hockey stick varies in length, height, width or area?
July 8, 2012 by Emma

Math
If y is directly proportional to x and inversely proportional to z^2, by what value is y multiplied if x is doubled and z is multiplied by 3
June 18, 2012 by Kelly

math
I am also having trouble with this one, thanks! If y varies jointly as x and the cube root of z, and y=120 when x=3 and z=8, find y when x=4 and z=27.
September 30, 2008 by cal

ecology
true or false, the temp. varies greatly throughout the year in a tropical rain forest?
October 29, 2008 by tania

ecology
true or false, the temp. varies greatly throughout the year in a tropical rain forest?
October 29, 2008 by tania

ALGEBRA 1
Determine the equation of combined, then solve for the missing value. Variation x varies directly with y and z. x=5 when y=10 and z=5. find x when y=20 and z=10
September 30, 2012 by Bobby Jones

algebra
Determine whether y varies directly with x. If so find the constant of variation k and write the equation. x y 7 11 8 13 9 15 10 17 Help please!
November 10, 2012 by Shadrick

Algebra II
The number of oscillations made by a pendulum in a given time is inversely proportional to the length of the pendulum. A certain clock with a 20-in.-long pendulum is losing 11.00 min/day. Should the pendulum be lengthened or shortened, and by how much?
November 16, 2011 by Arielle Guidry

Algebra II
The number of oscillations made by a pendulum in a given time is inversely proportional to the length of the pendulum. A certain clock with a 20-in.-long pendulum is losing 11.00 min/day. Should the pendulum be lengthened or shortened, and by how much?
November 21, 2011 by Joy

math
Determine the equation of joint variation. Then solve for the missing value. x varies directly with y and z. x = 400 when y = 8 and z = 10. Find x when y = 10 and z = 12.
June 21, 2011 by tyler

life science
true or false? The temperature varies greatly throughout the year in a tropical rain forest.
February 8, 2012 by selina

physics
The vector position of a 3.75 g particle moving in the xy plane varies in time according to the following equation. At the same time, the vector position of a 5.20 g particle varies according to the following equation. For each equation, t is in s and r is in cm. Solve the ...
November 27, 2011 by carlton

algebra 1
Suppose y varies directly as x and that y = 21 when x = 3. Find the value of y when x = 5. Would I be wrong if I said y = 35? In using y = kx with the 21 and the 3 k = 7. So if y = 35 and x = 5 then k = 7. Am I correct or am I way off course?
March 15, 2009 by Dippy

college algebra
Write formula that expresses the relationship described by each statement. Use k for the constant in each case. m varies directly as p.
April 23, 2010 by BJ

Algebra II
Assuming that y varies directly as the fourth power of x, fill in the missing values in the table of ordered pairs. x 18.3 74.5 ? y 29.6 ? 155
November 16, 2011 by Arielle Guidry

algebra
Determine whether y varies directly with x. If so find the constant of variation k and write the equation. x y 7 11 8 13 9 15 10 17 Can someone please help me and explain
September 19, 2012 by brandon

physics
The position of an object connected to a spring varies with time according to the expression x = (6.2 cm) sin (9.1 t). Find (a) the period of this motion
November 26, 2012 by Anonymous

maths, variations checking!
question: given that y is inversely proportional to (x-1), A) express y in terms of x and a constant k b) give that y=5 when x=3, find x when y=25 answer: A)y=-k(x-1) y=-kx+k B)y=5, x=3, k(constant)=3x5 k=15 25=-15x+15 10=-15x x=-10/15 is this correct? i'm not too sure about ...
December 18, 2007 by hayley

Calculus
1) yy'-e^x= 0, and y=4 when x=0 means that: A)y=x-lnx^2+4 B)y^2=4x^2+3 C)y=-2x+1/2x^3 D)y^2=2e^x+14 E)1/2ln|x^2+4|+6 2) The rate of change of P with respect to t is directly proportional to (10-t) and inversely proportional to the cube root of P. The differential equation that...
May 9, 2014 by Samantha

Math
The time it takes Javier to go to school and his walking rate are inversely proportional. If it takes him 12 mins walking at 3 mph how long does it take if he walks at 4 mph?
April 10, 2012 by Lizzy

Math-URGENT,
Given that y varies directly with x, write a direct variation equation that relates x and y. x=1/3 <---(fraction), y=2 **Provide an explanation as well, please.
October 24, 2011 by Izzy

College math
I really need to know the answer to this extra credit problem. Please help! A quantity, W, is directly proportional to X and the square of Y and inversely proportional to the cube of Z. W=3 when X=4, Y=2 and Z=4. What is the value of W when X=8, Y=9 and Z=6? Give answer to 3 ...
April 6, 2013 by Lorie

Precal
.Pump Jack Problem: An oil well pump jack is shown in Figure 3-9f. As the motor turns, the walking beam rocks back and forth, pulling the rod out of the well and letting it go back into the well. The connection between the rod and the walking beam is a steel cable that wraps ...
November 8, 2011 by Matt

Physics
If the force of friction is constant, prove that the stopping distance of a car on a level road varies directly with the square of the initial speed.
October 6, 2010 by Shaila

Chemistry
What happens to the equilibrium constant when a catalyst is added to the reaction mixture. A. Increase B. Decrease C. Does not change D. Varies E. None of the above I chose c
November 11, 2011 by Monique

algebra
Determine whether y varies directly with x, If so, find the constant of variation k and write the equation. x y 4 6.4 7 11.2 10 16 13 20.8 Would like for someone to explain if possible
September 10, 2012 by jay

Math
1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: , where C is a constant, ...
October 21, 2011 by Algebra

Math
1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: , where C is a constant, and...
October 21, 2011 by Student 315

Math
5).Hat size are determined by the measuring the circumference of the head in either inches or centimeters. Use ratio and proportion to complete the following table. Hat size Head circumference Head Circumference 7 to nearest 1/5 inch to the nearest centimeter 7 3/8 23 3/5 60...
May 28, 2010 by Mickey

Chemistry
What is he differeence between a graph representing data that are directly proportional and a graph of data that are inversely proportional?
August 31, 2007 by Amanda

algebra
Direct and Joint Variation 2. The volume V of a rectangular prism of a particular height varies jointly as the length l and the width w, and V = 224 ft when l = 8 ft and w = 4 ft. Find l when V = 210 ft and w = 5 ft.
January 26, 2009 by bob

math
Direct and Joint Variation 2. The volume V of a rectangular prism of a particular height varies jointly as the length l and the width w, and V = 224 ft when l = 8 ft and w = 4 ft. Find l when V = 210 ft and w = 5 ft.
January 26, 2009 by bob

Biology!!
The lifespan of plants varies depending on genetics and survival strategies. Discuss the adaptive value of annual, biennial, and perennial life spans.
January 26, 2011 by NEEDS HELP!!

physics
A 2.6-kg particle moving along the x axis has a velocity of +1.7 m/s as it passes through the origin. It is subjected to a single force, Fx, that varies with position, as shown below.
March 26, 2013 by Brandon

Physics RC
how does the circuit potential difference,v, across the capacitor varies with R(resistance)in an RC circuit??
December 1, 2007 by AllyKat

MATH Algebra
How do I find the variation constant and an equation of variation where y varies directly as x and y =70 when x=7
September 12, 2009 by Anonymous

Math
If b varies directly as the square root of w and b equals a negative 24 when w equals 36, what is w when b is equal to 1/8?
September 16, 2012 by Trey

Algebra
Find the variation constant and an equation of variation where y varies directly as x and y = 20 when x = 10
April 17, 2008 by Mary

Algebra
Find the variation constant and an equation of variation where y varies directly as x and y=50 when x=10
August 12, 2010 by Tim

algebra
find the variation constant and an equation of variation where y varies directly as x and y = 54 when x =x6
April 15, 2012 by Terry

Math
Find the value of y for a given value of x, if y varies directly with x. If y = 252 when x = 84, what is y when x = 74?
September 1, 2012 by Kelsey

Math
Write an equation: x varies directly as y and inversly directly to the cube of Z
January 21, 2013 by Sara

Algebra (please help!)
If y varies directly as x and y is 3 when x is 8, what is the constant of the variation? I don't understand what they are asking and how to solve this. Please help if you can! Thank you so much! :)
May 29, 2009 by Faith

Math
If y varies directly as x and y=3 when x=10, find x when y=8? Can you please show me step by step solution for this problem?
January 10, 2013 by HELPP!!!

physics
why weight of gold varies at 2 different places like panna and ladakh (physics)
June 12, 2013 by rita

Chemistry
H6P6: Urbium Oxide First Part of the Question: Urbium (Ur) is an upscale element found in big cities. Its oxide (UrO2) is not very stable and decomposes readily at temperatures exceeding 66∘ C. The figure below shows how the rate of reaction varies with the concentration...
November 29, 2012 by Odesa

Algebra PLEASE HELP!
If y varies directly as X and X=88 when Y= 110, find X whaen Y=70 Set up a proportion: 88/110 = X/70. solve for X.
June 11, 2006 by Nicole

math
can someone correct this for me. Find the constant of variation k. m varies directly with n; m=144 when n = 8 my answer: 144 = k (8) --- ---- 8
December 22, 2006 by jasmine20

Algebra
The circumference,y, of a circle varies directly with the diameter,x, of the circle. Write an equation if y=44cm when x=14cm.
May 17, 2010 by Austin

algebra
Find the value of y for a given value of x if y varies directly with x if y=2.52 when x=8.4,what is y when x=2.7 thanks
March 4, 2014 by snow

PHysics
The vector position of a 3.65 g particle moving in the xy plane varies in time according to the following equation. r1 = <(3i+3j)t + 2jt^2> At the same time, the vector position of a 5.60 g particle varies according to the following equation. r2 = <3i - 2it^2 - 6jt>...
February 16, 2010 by engmath

AL
The instructions to my book work says for the data in each table, tell whether y varies directly with x. If it does write an equation fo rthe direct variations. Well how do you do that exactly. Thanks you for your help.. Please help me.
May 12, 2009 by Math

Statistics
The high temperature X (in degrees Fahrenheit) on January days in Columbus, Ohio varies according to the Normal distribution with mean 21 and standard deviation 10. the value of P(X<10)is?
March 13, 2010 by Anonymous

Statistics
The high temperature X (in degrees Fahrenheit) on January days in Columbus, Ohio varies according to the Normal distribution with mean 21 and standard deviation 10. the value of P(X<10)is?
March 13, 2010 by Anonymous

psychology
research over the last decade has shown that the percentage of high school students engaging in sexual intercourse a)is on the rise b)has remained the same c)is on the decline d)varies
July 12, 2010 by tee

Stats
The high temperature X (in degrees Fahrenheit) on January days in Columbus, Ohio varies according to the Normal distribution with mean 21 and standard deviation 10. The value of P(X < 10) is
March 29, 2014 by Tracy

Phisic mechanic
An applied force varies with position according to eq. Fx = 3x3 - 5, where x is in m, and Fx in N. What is the work of this force on a body that moves from x to x = 4 m = 7 m?
October 4, 2010 by cls

algebra
Show all steps Find the value of y fora given value of x if y varies directly with x If y =-252 when x=84, what is y when x=74?
March 11, 2014 by snow

physics
how much will the length of a 1.0 km section of concrete highway change if the temperature varies from -15 Celsius in the winter to 41 Celsius in the summer?
July 17, 2012 by gen

math
x is partly constant and partly varies as y, when y=2,x=0 and when y=6,x=20.find x when y=3
January 15, 2014 by adeola

physics/chem
what is the relationship between density and specific heat capacity? and why? i thought when density increase specific heat increase but it says that it is inversely proportional. thank you
December 1, 2010 by lizzy

Math-PLEASE. HELP.
Given that y varies directly with x, write a direct variation equation that relates x and y. x=1/3 <---(fraction), y=2 **Provide an explanation as well, please.
October 24, 2011 by Izzy

math
The volume V of a pyramid varies jointly as the area of the 1. ________________________ base B and the height h, and V=24 ft3 when B=12 ft2 and h=6ft. Find B when V=54 ft3 and h=9 ft.
April 28, 2013 by mad

algebra
If the voltage V, in an electric circuit is held constant,the current,I,is inversely proportional to the resistance,R. If the current is 490 milliamperes when the resistance is 5 ohms,find the current when the resistance is 35 ohms.
December 6, 2010 by jitka

algebra
Hint: Pay attention to the units of measure. You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different planets, but did you know that ...
March 23, 2010 by Ross

algebra
Hint: Pay attention to the units of measure. You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different planets, but did you know that ...
March 23, 2010 by Ross

college
Hint: Pay attention to the units of measure. You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different planets, but did you know that ...
July 15, 2010 by cyn

Math
Hint: Pay attention to the units of measure. You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different planets, but did you know that ...
September 25, 2010 by tina

Algebra 2
The frequency of a radio wave is inversely proportional to the wavelength. If a wave 250 m long has a frequency of about 1200 kHz, what is the approximate length of a wave with a frequency of 800 kHz? A. 167 m B. 258 m C. 325 m D. 375 m
March 28, 2011 by Lauren

algebra
Show all steps Determine whether y varies directly with x if so find the constant of variation k and write the equation? X line is y line is 4. 6.4 7. 11.2 10. 16 13. 20.8
March 11, 2014 by snow

Physics
Two colliding objects exert equal and opposite forces on each other (Newton's Third Law). However, acceleration experienced by an object is inversely related to its mass: the smaller the mass, the larger the acceleration for a given force (pp. 49-50). Therefore the motorcycle ...
September 15, 2013 by Need help badly

math 117
Can some help me with this appendix please. Thank you Pay attention to the units of measure. You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object ...
July 16, 2010 by c.g.

ENGLISH!
In what part of speech is "concert" being used as? "Our share of the responsibility for what we do individually or in concert with others varies with social and political structures..."
January 28, 2010 by Happy Face

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