Monday

January 23, 2017
Number of results: 1,399

**maths**

can you explain to me how to do this question i know i have to use differential equations but im not sure how to form an equation for inversely proportional question states grain is being poured at a steady rate to form a pile with height h, the rate at which the height is ...

*February 1, 2010 by lucy*

**Algebra 2**

Find the distance between the points (12, 8) and (4, 2). 100 units 14 units 10 units –10 units Find the midpoint of the points (3, 1) and (7, –5). (1, 6) (2, 1) (2, –3) (5, –2) Find the vertex and focus of the parabola whose equation is 4y = x2 + 4. V(0, 4), F(0, 3) V(...

*June 4, 2011 by Ben*

**economics- opportunity cost**

how does opportunity cost vary? why does opportunity cost vary? for why i put: Opportunity cost is different for every individual. It varies depending on the choice you make. i'm not sure about "how" it varies though.

*September 10, 2007 by Anonymous*

**Math-Algebra**

1. The area of a square varies directly as the square of its side. If the side is halved, what would be the effect on its area? 2. If y varies directly as the square of x, what will happen to y when x is tripled?

*November 13, 2013 by McKenna Louise*

**Physics**

I have a hard time solving this problem. The weight of an object at the surface of a planet is proportional to the planet's mass and inversely proportional to the square of the radius of the planet. Jupiter's radius is 11 times Earth's and its mass is 320 times Earth's. An ...

*August 28, 2005 by Nisar*

**math**

Studying for a final help. 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 aalso varies according to the elevation of an object? In oparticular, the weight of an object follows this equation: w=cr...

*April 9, 2009 by tera*

**Physics help please!!!**

The angular speed of digital video discs (DVDs) varies with whether the inner or outer part of the disc is being read. (CDs function in the same way.) Over a 133 min playing time, the angular speed varies from 570 rpm to 1600 rpm. Assuming it to be constant, what is the ...

*February 18, 2012 by john*

**algebra**

If x is inversely proportional to y, and x=60 when y=0.5, find x when y =12

*March 22, 2008 by michael*

**Algebra 2**

If y is inversely proportional to x and y=12 when x=2, what is the value of x when y=3? A. 2 B. 3 C. 8 D. 12

*March 28, 2011 by Lauren*

**algebra**

If y is inversely proportional to x, and y=8 when x=2, find y when x=5

*June 10, 2011 by Mindy*

**Math-II**

If C is inversely proportional to T, when C=1/6 and T=4/7, find C when T=10.

*November 21, 2012 by jezzaD.*

**maths**

if x and y vary inversely and x=18 when y=8,find x when y=16

*January 29, 2013 by tuhituhi*

**Alegrbra 1**

x and y vary inversely, and y = 3 when x = 6. Find y when x = 9. A. 2 B. 4.5 C. 12 D. 18

*November 3, 2013 by Musa*

**math**

The variables x and y vary inversely. When y is 24, x is 8. What is y when x is 4?

*May 14, 2016 by Anonymous*

**math**

i posted this can you explain to me how to do this question i know i have to use differential equations but im not sure how to form an equation for inversely proportional question states grain is being poured at a steady rate to form a pile with height h, the rate at which the...

*February 1, 2010 by lucy*

**math**

i posted this can you explain to me how to do this question i know i have to use differential equations but im not sure how to form an equation for inversely proportional question states grain is being poured at a steady rate to form a pile with height h, the rate at which the...

*February 2, 2010 by lucy*

**Science ( Need help really bad Please!)**

An object's weight is dependent upon its location in the universe. Why is this true? A. This is true because weight is the magnitude of gravitational force acting on an object, and since gravitational force varies in different places in the universe, weight also varies. B. ...

*February 13, 2014 by Julie*

**math please help**

i posted this can you explain to me how to do this question i know i have to use differential equations but im not sure how to form an equation for inversely proportional question states grain is being poured at a steady rate to form a pile with height h, the rate at which the...

*February 2, 2010 by lucy*

**Physics**

Wave velocity is inversely proportional to what?

*July 9, 2010 by Mary*

**math**

for the function f,y=f(x) is inversely proportional to x, where x>0. If f (3)=6 what is the value of f(2)?

*November 8, 2010 by Grace*

**Algebra**

y is inversely to x. If y=300 when x=4, find y when x=150

*March 27, 2015 by Antianna*

**Math**

if e and f are inversely proportional and e=3 when f=9, then what is the value of e when f=3^-1? Please help.

*July 19, 2016 by Anonymous*

**powerline**

the resistance of the material in inversely proportional to its

*July 28, 2016 by lagjhon*

**Math: Direct Variation**

I really don't get direct variation and I took a test on it and bombed it but now I can correct it so if anyone can just explain it to me I'd be really grateful. :) Generally, direct variation means that as one of the variables assumes increasing positive values the other ...

*September 21, 2006 by Somebody*

**INT. Algebra**

suppose that W is inversely proportional to V. If W = 63 when V = 9, find W when V = 81

*March 13, 2015 by Rocio*

**Algebra**

When j = 33 m = 2 and p = 1/4 of j vaires directly with m and inversely with p what is the constant variation

*November 8, 2016 by Lexxa*

**math**

if n veries inversely as (y^2-1) and is equal to 24,when y=10. then find the value of n, when y=5

*January 16, 2017 by Anonymous*

**algebra**

9. 9/5w + 8/w ** Cannot be simplified. Am I correct?? 14. The number of instrctions N performed per second by a computer varies directly as the speed S of the computer's internal processor. A processor with a speed of 20 megahertz an perform 1,800,000 instructions per second. ...

*September 26, 2013 by Help*

**people**

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...

*November 6, 2010 by Anonymous*

**algebra**

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 the weight of an object on earth also varies ...

*November 12, 2009 by linda*

**Physics**

The vector position of a 3.45 g particle moving in the xy plane varies in time according to 1 = 3 + 3t + 2t2 where t is in seconds and is in centimeters. At the same time, the vector position of a 5.00 g particle varies as 2 = 3 − 2t2 − 6t. Determine the vector ...

*March 27, 2012 by Sheri*

**Physics**

The vector position of a 3.45 g particle moving in the xy plane varies in time according to 1 = 3 + 3t + 2t2 where t is in seconds and is in centimeters. At the same time, the vector position of a 5.00 g particle varies as 2 = 3 − 2t2 − 6t. Determine the vector ...

*March 27, 2012 by Sheri*

**Physics**

The vector position of a 3.45 g particle moving in the xy plane varies in time according to 1 = 3 + 3t + 2t2 where t is in seconds and is in centimeters. At the same time, the vector position of a 5.00 g particle varies as 2 = 3 − 2t2 − 6t. Determine the vector ...

*March 27, 2012 by Sheri*

**Physics**

The vector position of a 3.45 g particle moving in the xy plane varies in time according to 1 = 3 + 3t + 2t2 where t is in seconds and is in centimeters. At the same time, the vector position of a 5.00 g particle varies as 2 = 3 − 2t2 − 6t. Determine the vector ...

*March 27, 2012 by Sheri*

**Chemistry**

Is rate of evaporation directly or inversely related to molecular weight

*February 4, 2009 by Ketty*

**Math**

Suppose that z is inversely proportional to y and that z=12 when y=16. Write an equation that expresses z in terms of y.

*March 12, 2012 by Anastasia*

**Math**

The resistance(r)of a wire varies directly as the length(L)of the wire and inversely as the square of the diameter(d). If the resistance is 9ohms in 50ft of wire that has a diameter of 0.05in, find the resistance in 50ft of a similar wire that has a diameter of 0.02in. ...

*September 22, 2006 by Amber*

**electronics and circuits**

A circuit that combines two or more signals is called a mixer. In this lab, your goal is to build a mixer that combines the signals generated by two voltage sources, V1 and V2, where: V1 is a 1 kHz square wave that varies between 0V and +1V, and V2 is a 5 kHz sine wave that ...

*November 18, 2016 by kanimozhi*

**Physics**

Wavw velocity is inversely proportional to what? (a) period (b) wavelength (c) amplitude (d) All of these

*July 9, 2010 by Mary*

**science**

In electromagnetic waves, frequency is inversely proportional to Fast Please. I do not understand this

*December 9, 2014 by Anonymous*

**Economics**

If demand is price elastic, total revenue is a.directly related to quantity demanded b.inversely related to quantity demanded c.directly related to price d.directly related to price and inversely related to quantity demanded e.not related to either price or to quantity demanded

*January 19, 2010 by Rosa*

**algebra**

15. To travel a fixed distance, the number of gallons needed is inversely proportional to the miles per gallon rating P of the car that gets 42 miles per gallon (mpg) needs 33 gallons to travel the distance. a. Find an equation of variation N= b. A car that gets 77 mpg needs ...

*September 27, 2013 by Help Please*

**Physics**

The vector position of a 3.00 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 5.85 g particle varies according to the following equation. r2 = <3i - 2it^2 - 6jt>...

*December 1, 2011 by LadyJ*

**Economics**

Why are the multiplier and MPS inversely related? If net exports increase, is this a leakage or an injection?

*February 7, 2009 by Michelle*

**math**

Suppose that x and y vary inversely and that y=1/6 when x = 3. Write a function that models the inverse variation and find y when x = 10.

*May 27, 2010 by Skye*

**Math**

m is inversely proportional to n^2, where m and n are positive numbers. If m is increased by 1500% , find the percentage change in n. THANKS.

*August 9, 2011 by StuartKess*

**MATH...PLZ HELP**

The width of the Confidence Interval is inversely related to the Maximum Error of Estimate. T or F? Why or why not?

*November 3, 2011 by Jen*

**Math-Algebra**

1. The surface area of a cube varies directly as the square of its edge. Find its surface are. 2. A certain object traveling at 24 meters per second has a kinetic energy of 72 joules. If the kinetic energy of that object varies directly as the square of its velocity, find the ...

*November 24, 2013 by Mckenna Louise*

**ALGEBRA**

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...

*March 23, 2010 by GGIFT*

**Math-Algebra**

1. The force (in Newtons) applied to an object varies jointly as its mass and acceleration. How much force is needed to accelerate a 25 kg object by 3 m/s^2? 2. The potential energy of an object varies jointly as its mass and height from the ground. If the potential energy of ...

*November 13, 2013 by McKenna Louise*

**physics (please help)**

Win 1010” AM radio broadcasts at 1010KHz. Determine the wavelength of its signal, knowing that all radio waves travel at 3.00 X 10^8 m/s. f=1010kHz v=3.00 X10^8 m/s v=F X lambda lambda= 2.9 X 10^5 For a particular type of wave in a particular medium why must f and lambda be ...

*February 17, 2007 by susan*

**calculus**

Write and then solve for y = f(x) the differential equation for the statement: "The rate of change of y with respect to x is inversely proportional to y^4."

*April 29, 2015 by Anonymous*

**chemistry**

for an ideal gas which pair of varibles are inversely proportional to each other if all factors remain constant?

*November 18, 2009 by taahirah*

**Science**

In electromagnetic waves, frequency is inversely proportional to A. Amplitude. B. Wave speed. C. Wavelength. D. ReflectioN. Is the answer C? Thank you

*February 16, 2015 by Callie*

**Physics**

The vector position of a 3.80 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 5.35 g particle varies according to the following equation. r2=3i-2it^2-6jt For each equation, t is ...

*February 12, 2010 by ucieng*

**physics**

The vector position of a 3.80 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 5.35 g particle varies according to the following equation. r2=3i-2it^2-6jt For each equation, t is ...

*February 13, 2010 by ucieng*

**Science**

What is the relationship between the number of gas particles and pressure. Are these two variables directly proportional or do they vary inversely?

*October 9, 2013 by Sarah*

**chemistry**

why would dipole moment increase with temperature for a planar molecule? even though those are inversely related...

*February 8, 2015 by paul*

**Math**

Can anyone give me an example of a situation that is inversely proportional and one that is direct? Also tell me the difference between the two.

*February 11, 2016 by Sophie D.*

**Chemistry**

Which of the following have quantized values? The question may have more than one correct answer. 1. The pitch of a note played on a slide trombone because the pitch varies based on the position of the slide. 2. The pitch of a note played on a flute because the pitch is ...

*October 22, 2011 by Anonymous*

**Algebra 1--Please, help me!**

1. The number of calculators Mrs. Hopkins can buy for the classroom varies inversely as the cost of each calculator. She can buy 24 calculators that cost $60 each. How many calculators can she buy if they cost $80 each? A: ? 2. Jeffs builds model train layouts. He has $75 to ...

*May 26, 2014 by Victoria*

**Math**

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: w=Cr^-2 , where C is a constant...

*September 17, 2010 by ASD*

**algebra**

if y varies directly as x, and y is -60 when x is -5, find y when x is 3 The mass of an object varies directly as its volume. The mass of the object is 150 grams when its volume is 600 cm3. Find the mass of the object when the volume is 950 cm3

*December 5, 2006 by Brenda*

**algebra**

First: solve for k. Then, go back to the original equation c=k(d-3) and solve for c when d is ten. Second: Area=k*s^2 Put in the fist conditions, solve for k. Then, knowing k, solve for A when is eight. direct variation 1)if c varies directly as d-3, and if c=16 when d=7, find...

*May 21, 2007 by SraJMcGinn*

**Algebra 2**

Need help on the #13-20. 13. What is the quotient of d − 2 ) d 4 − 6d 3 + d + 17 __________________ ? A. d 3 − 4d 2 − 8d − 15 R −13 B. d 3 − 8d 2 + 16d − 31 R 79 C. d 3 − 4d 2 + 9d + 35 D. d 3 − 8d 2 + 17d − 17 ...

*December 6, 2010 by Emily*

**math**

Set up the general equation from the given statement: m is proportional to the square of n and inversely proportional to both y and x.

*March 23, 2011 by cay*

**Algerbra**

y varies directly as x, and y=20 when x=5

*May 17, 2010 by Austin*

**Algebra**

y varies directly as x, and y=20 when x=5

*January 4, 2011 by Donna*

**Math>> Help!!**

If y varies as x, and x = 9 when y = 15, find y when x = 33.

*June 5, 2013 by Jnr John*

**math**

Y varies directly as X,Y=32 when X=4

*October 3, 2016 by ULOK*

**Physics**

The vector position of a 3.40 g particle moving in the xy plane varies in time according to the following equation. At the same time, the vector position of a 5.05 g particle varies according to the following equation. For each equation, t is in s and r is in cm. Solve the ...

*December 2, 2012 by carlton*

**Algebra**

x is directly proportional to y and is inversely proportional to the cube of z.

*September 5, 2011 by Rose*

**algebra**

If y varies jointly with x and z, and y=24 when x=3 and z=2, then the value of x when y=6 and z=0.5 is 12 6 1 3 1/3

*June 12, 2008 by erica*

**math**

z varies with w and z=30 when w=0.6 what is the constant proportinal? what is z when w=10

*February 22, 2010 by Anonymous*

**college algebra**

u varies inversly as n

*April 23, 2010 by BJ*

**ALGEBRA 2**

y varies directly with x, and y = 2 when x = 5. What is the value of x when y = 15? A. x = 25 B. x = 10 C. x = 6 D. x = 37.5

*July 9, 2012 by leo*

**algebra**

y varies directly with x. When y = 20, x = 50. Find x when y = 36.

*September 15, 2012 by nmdna*

**algebra 2**

y varies directly with x. When y = 20, x = 50. Find x when y = 36.

*September 19, 2012 by chris*

**HELP!!! Math**

If y varies jointly as x and z, and y = 33 when x = 9 and z = 12, find y and x = 16 and = 22.

*June 5, 2013 by Jnr John*

**maths**

if y varies directly as x,and x=9 and when y=15'find y when x=33

*June 17, 2013 by cedric*

**Math**

W varies directly as x,y,and z. If w=36 when x=2, y=8, and z=12 find w when x=1 y= 2, and z=4

*July 11, 2013 by Steve*

**Math**

If x varies directly as y, and if x = 6 when y = 15, find y when x = 30

*February 20, 2014 by Martha*

**Math**

x varies directly as y3 . If x is 32 when y is 2, find x when y is –3

*March 8, 2014 by Maria*

**algebra**

If y varies directly to x, and y=14 when x=21, what is the value of x when y=7?

*April 29, 2015 by clarissa*

**Algebra**

If x varies directly as y and x=9 when y=2 find x when y is 6

*November 24, 2015 by Matthew*

**Algebra II**

y varies directly as x. if y=-5/8 when x=3/2, find x when y=2/5

*September 15, 2016 by Nicole*

**Math**

1. Suppose y varies directly with x. Write a direct variation equation that relates x and y. y= 7 1/2 when x=3 a. y= 3/2 x b. y= 2/3 x c. y= 5/2 x d. y= 2/5 x 2. Suppose y varies directly with x. Write a direct variation equation that relates x and y. y=10.4 when x=4 a. y= 3.4...

*December 3, 2015 by Kaai97*

**Geometry**

Assume y varies directly as x. If x = 24 when y = 24, what is the value of k?

*November 22, 2009 by Letisha*

**Geometry**

Assume y varies directly as x. If x = 4 when y = 36, what is the value of k?

*November 27, 2009 by Chitra*

**algebra**

Assume y varies directly as x. If x = 2 when y = 7, find x when y = 32.

*November 28, 2009 by Letisha*

**algebra2**

y varies jointly with p and q. When p = 12 and q = 4, y = 144. Find y when p = 10 and q = 6.

*November 21, 2010 by Rayniya*

**Math**

If m varies directly as v^2, and m=2 when v=3, calculate the value of m when v=6

*February 20, 2011 by kay*

**college Algebra**

If y varies directly as x^2 and y=20 when x=4, find y when x=7?

*March 21, 2012 by meme*

**Algebra II**

if y varies directly as x, if y=80 when x=32, find x if y=100

*March 22, 2012 by Randy*

**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*