1,081 Answered Questions for the topic Equations

Equations

11/18/15

Solve: 2/(x-1) - 1/2 = 4/(x^2-1)
Solve:  2/(x-1) - 1/2 = 4/(x^2-1)
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Equations Functions

11/18/15

x^(2/3) + 2 = 3x^ (1/3)
x^(2/3) + 2 = 3x^ (1/3)
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Equations

11/18/15

y=3x 5x+2y=44
y=3x 5x+2y=44
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11/17/15

How to Solve for 'x' When It's an Exponent?
Basically, I have this equation...   60 = 400(0.85)x   ...And I need to solve for 'x'. So far, what I'm thinking is that I need to divide both sides by 400, but I haven't got past that yet... more
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Equations

11/12/15

if x,y,z satisfy xy=1 yz=2 and x=3 what is the value of x^2+y^2+z^2
The question is for advanced math  If x,y and z satisfy xy=1 yz=2 and xz=3 what is the value of x^2+y^2+z^2 express your answer as a common fraction.
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Equations

11/12/15

Find the Solution of the equation -2x + 7 = 7
a.no solutionb.infinitely many solutionsc.x = 0d.x = -7
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Equations

11/09/15

how do I find the equation for a math problem?
60 inches of plastic are folded to make a picture frame. The height of the finished frame is 6 inches how long is the picture frame?
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Equations

11/09/15

3b+b/2-2=180 what does B equal?
3b+b/2-2=180 what does B equal?
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Equations

11/06/15

Solve this formula for L
The formula for finding the perimeter of a rectangle is P=2L+2W
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Equations

11/03/15

jasmine buys 2.25 kg of apples for $11.25. how much does 1 kg of apples cost?
jasmine buys 2.25 kg of apples for $11.25. how much does 1 kg of apples cost?
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Equations Logs

11/01/15

ln (x+2) - ln(4x) = 1 and 5(2^x+1) - 3 = 8
Solve the following equations or indicate that no solution exists.   Thank you!
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Equations

11/01/15

6th Grade Equation Question Help
Serena owns 6 more than twice as many CDs as Sam. Serena owns 40 CDs. Write an equation to model this situation. Identify what the variable represents.  
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Equations Equation

11/01/15

6th Grade Math Question
A company's monthly cost C, in dollars, for storing X surplus units of a product is C=1200+2.15X. What is the number of surplus units that can be stored for a monthly cost of $3200?
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Equations

10/31/15

if x is a value and y is a percentage, how to max x with a set number of y not passing 100%
  X         Y                      How to maximum x with 8 values, and the sum of Y is not greater than 1? What im looking for is an                                      equation or same type of... more
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10/30/15

Please help me with this factoring problem !
At a certain time of day, a tree that is x meters tall casts a shadow that is x − 17 meters long. If the distance from the top of the tree to the end of the shadow is x + 8 meters, what is the... more
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Equations

10/29/15

System of Equations
x + y + z = 4 x - 2y - z = 1 2z - y - 2z = -1    
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10/28/15

I have to write a function for this problem and I'm completely lost.
Alan's camping troop is selling popcorn to earn money for an upcoming camping trip. Each camper starts with a credit of $25 towards their sales, and each box of popcorn sells for $3.75. I have to... more
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10/28/15

Solve equation using algebra
√(y-3) = 1 - √(2y-4)
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Equations Variables

10/26/15

John's car uses 6.4 gallons of gas for every 100 miles he works. How much gas will he need for a trip of 75 miles?
i dont understand this question due to the wording
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Equations

10/22/15

Need to create a formula
The number of cell phone subscribers in the U.S. reached 256 million in 2008, upfrom 34 million in 1995. Find the equation of the line that depicts this info anduse the equation to estimate the... more
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Equations

10/21/15

What is the equation for Five added to a number, then divided by two equals eight
What is the equation for Five added to a number, then divided by two equals eight    
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Equations Power Functions

10/18/15

Determine how many solutions has?
Without solving the equations below, determine whether each equation has one positive solution, one negative solution, one solution at x=0  , two solutions, three solutions, or no solution. 1.... more
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Equations Math Algebra Addition

10/18/15

please help
Use addition to solve the following system of equations:   2x+3y=5 4x+y=-5
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Equations

10/18/15

How to solve equations?
Solve each equation by completing the square. 1) x^2-3x-88=0 2) 2x^2+11x-21=0 3) z^2-2z=24 Fin the discriminant of each equation and describe the nature of the roots of the equation. Then solve... more
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Equations Math Algebra Problem

10/16/15

help please
Perform the indicated operations:   A) (2x^3-3x^2+x-1)-(x^3-3x+4)   B) (x^2-2x-1)(x+3)
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