Saturday

April 18, 2015

April 18, 2015

Number of results: 1,133

**algebra**

z varies directly as x^2. If z=36 when x=3,find zwhen x=4.
*March 30, 2012 by Jay*

**Algebra**

R varies jointly as r and B^2. When r=3, and B=3 R=135. Find R when r is 1 and B=10.
*April 3, 2012 by Taurus*

**Interediate algebra**

if f varies jointly as q^2 and h, and if f = 72 when q = 3 and h = 4, find h when f = 48 and q = 2
*April 7, 2012 by Jason*

**algebra**

Assume that Y varies directly as X. If Y = -11 when x = -4, find Y when x = 6.
*April 15, 2012 by cassie*

**math**

x varies directly with y and z x=1200,when y=20 and z=30. Find x when y=10 and z=20
*September 5, 2012 by Anonymous*

**math**

if Y varies jointly as X and the square of Z, and if Y=24 when X=2 and Z=6, find Y when X=10 and Z=9
*September 5, 2012 by amber*

**algebra 2**

Suppose y varies jointly with x and z, and x = 4 when y = 8 and z = -2.What is the value of x when y = 12 and z = 3? A. -4 B. 4 C. 15 D. 9
*July 11, 2013 by Sam*

**Alg 2**

The value of y varies directly with x. If y = 64 when x is 16, what is x when y is 288?
*October 25, 2013 by Chloe*

**algebra**

the value of y varies directly with x, and y= -14 when x = 1/2. find y when x = -1.
*January 17, 2014 by genny*

**Math Algebra**

f varies jointly as g2 and h, and f = 50 when g = 4 and h = 2. Find when g = 3 and h = 6
*February 20, 2014 by Eva *

**Math**

If a varies jointly as b and c, and if a = 100 when b = 5 and c = 25, find a when b = 12 and c = 60
*February 20, 2014 by Ivan*

**Algebra 1**

suppose y varies directly with x and y = 14 when x = -4 what is the value of y when x = -6
*December 3, 2014 by Steve*

**Algebra 1**

Suppose y varies directly with x and y = 24 when x =8. What is the value of y when x = 10?
*December 3, 2014 by Steve*

**Algebra 1**

Suppose y varies directly with x and y = 24 when x =8. What is the value of y when x = 10?
*December 4, 2014 by Steve*

**college math**

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=5, y=5 and z=4. Give answer to three decimal places. Thanks so much!
*April 5, 2013 by Lorie*

**Macroeconomics - SOE**

Statement: The lower our real exchange rate is, the less expensive domestic goods are relative to foreign goods, and the greater the demand is for next exports. I don't get the above statement, please look below to see if there is fault in my reasoning and explain why it is ...
*December 14, 2009 by Anonymous*

**college math**

A quantity, W, is directly proportional to X and the square 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 decimal places. Thanks in advance! I appreciate all the help! :)
*April 5, 2013 by Lorie*

**Math**

How do I set up this equation? If Y varies directly as X and Y = 12 when X = 3, find Y when X = 16
*February 25, 2008 by Sarah*

**math**

Y varies directly as X. When Y is 10, X is 15. Find Y, when X is 32. a. Can not be determined b. When X is 32 then Y = 165 c. When X = 32 then Y is; 21 1/3 d. When X is 32 then Y = 5
*April 16, 2009 by Sandy*

**alegbra2**

y varies directly as the square of x. When x = 2, y = 40. Find x when y = 640.
*November 21, 2010 by Rayniya*

**algebra**

p varies jointly as u and B^2 when u = 4 and B = 5, P = 300. find P when u is 1 and Bis 11
*April 20, 2013 by tesha*

**Algebra 2**

suppose y varies directly with x and y=1 when x= -3. what is the constant of variation? what is x when y=4?
*December 16, 2014 by Zach*

**SAT math**

Can someone please help me with this question: Write an equation that describes the following variation statement, and then find the constant of proportionality k . z is inversely proportional to x and directly proportional to y ; z = -10 when x = 5 and y = 50.
*June 2, 2013 by mysterychicken*

**physics**

12. Which of the following statements is correct for a particle moving in a horizontal circle with constant angular velocity? A. The linear momentum is constant but the kinetic energy varies. B. The kinetic energy is constant but the linear momentum varies. C. Both kinetic ...
*November 1, 2013 by shanza*

**math**

Find the constant of Variation K m varies directly with n;m=144 when m=8
*September 30, 2007 by sissi*

**Physics**

Describe how the range of a projectile varies with launch angle.
*June 3, 2008 by Laura*

**math.**

Which of the following is an equation of joint variation? y = kxz x varies with y y = k/x y = kx
*June 12, 2008 by margie =]*

**Algebra II**

Suppose that y varies directly as the 3/2 power of x, and that y=192 when x= 16. find y when x=9.
*July 3, 2011 by Reanna*

**College Algebra 2**

Find the equation of variation in which y varies jointly as x and z and y=8, x=4 and z=2
*September 25, 2011 by So Confused*

**algebra**

Find the varition constant and an equation where y varies directly as x=16 where x=8
*November 8, 2011 by Robert*

**Algebra (direct variation)**

the value of y varies directly with x, and y=-2 when x=-4 Find y when x=8 -2=k(-4)
*November 28, 2011 by Hannah*

**Math**

if g(x) varies exponentially with x, and g(0) =37 and g(7) =5940 find the particular equation...
*February 19, 2012 by Billy*

**math**

Solve variation problem if m varies jointly as z and p, and m=10 when z=2 and p=7.5, find m when z=5 and p=7
*February 24, 2012 by Anne*

**Algebra 2**

A measurement y varies directly with regard to another value x. If y = 9 and x = 24, find x for y = 25.
*March 28, 2012 by Marie*

**math**

Suppose T varies directly as the 3/2 power of x. When x=16, T=160. Find T when x=4
*April 11, 2012 by Anonymous*

**intermediate algebra**

Y varies directly with square root of X. Y=3 when X=4. find Y when X=1
*October 1, 2012 by suzy*

**SS**

The layer in the ocean where the temperature varies with depth is called the ____.
*February 7, 2013 by Bell*

**math**

Y varies direct proportion with x.if x=5 then y=12,thus find the value of y when x=7.5
*February 17, 2013 by Maths.department*

**HELP!!! Math**

If a varies jointly as b and the square root of c, and a = 21 when b = 5 and c = 36, find a when b = 9 and c = 225.
*June 5, 2013 by Jnr John*

**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*

**Coordinate Algebra**

Suppose y varies directly with x. If y = 6 when x = −2, find x when y is 9.
*September 16, 2014 by Anonymous*

**math**

P varies directly as the square root of q. P=8 when q =25 find p when q = 100
*October 26, 2014 by Anonymous*

**math**

the cost C varies directly as the number in of penals is written as?
*October 28, 2014 by rosemariel*

**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*

**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*

**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 *

**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**

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*

**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**

power applied to a particle varies with times as p=3t^2-2t+1 Watt where t is in second. And the change in its kinetic energy b/w time t=2s t=4s
*August 31, 2014 by ashish *

**algebra**

Suppose y varies directly with x. Write an equation relating x and y. 645-09-05-00-00_files/i0130000.jpg a. y = 6x c. y = 7x b. y = x d. y = − x
*November 6, 2014 by jj*

**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*

**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*

**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 (9.1ð t). Find (a) the period of this motion
*November 26, 2012 by Anonymous*

**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...Help.Thx**

20. READING: The number of pages P a student can read varies directly with the amount of time T in minutes spent reading. The student can read 90 pages in 60 minutes. Write an equation that relates P and T. PREDICT the number of pages the student can read if 90 minutes is ...
*September 9, 2014 by Jake*

**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*

**algebra. help!**

Find the slope of a line that passes through (-2,-3) and (1,1). a. 1/3 b. 1 c. 2 d. 4/3 For the equation -4y=8x, what is the constant of variation? a. -4 b. -2 c. 1 d. 2 Suppose y varies directly with x, and y=24 when x=8. What is the value of y when x=10 a. 10 b. 30 c. 80 d.240
*November 20, 2014 by Hannah*

**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*

**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*

**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*