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104 Answered Questions for the topic Solutions

08/14/16

Completely dry raisins do not absorb water from a solution because.......

Completely dry raisins do not absorb water from a solution because.......
Solutions Ordered Pair

07/28/16

find the ordered-pair solution of y=3x-9 corresponding to x=4

please help me I cant figure out this answer I have tried to summit my answer 5 times and its incorrect
Solutions Math Algebra

05/20/16

250g of water were added to 150g of 30% salt solution. What is the new concentration of the mixture?

250g of water were added to 150g of 30% salt solution. What is the new concentration of the mixture?          PLEASE HELP :D
Solutions

04/19/16

Find the solutions to this equation 2x2+9x+4=0

 2x2  +9x+4=0 find the solutions

02/17/16

Among all rectangles that have a perimeter of 144. find the demensions of the one whose area is largest

I don't know how to set this up and I am needing help. My professor did not tell me how to do this nor does my book

02/09/16

Stain remover solution word problem

katy runs a dry cleaning business and needs 6% phosphoric acid solution to remove a stain from a suit. Katy has on hand 14% phosphoric acid solution and a 2% phosphoric acid solution. How many... more

01/27/16

Calculate the vapor pressure of a solution? CHEMISTRY - Please check my answers??!!

Calculate the vapor pressure of water above a solution made by adding 15.0 g of lactose (C12H22O11) to 100.0 g of water at 338 K. (vapor pressure of pure water at 338 K is 187.5 torr) P (vapor... more

01/27/16

Calculate the vapor pressure of water above a solution. Please check my work??? General Chemistry

Calculate the vapor pressure of water above a solution made by adding 15.0 g of lactose (C12H22O11) to 100.0 g of water at 338 K. (vapor pressure of pure water at 338 K is 187.5 torr)   P (vapor... more

01/27/16

Determine how many moles of particles are present in 1.0 L of the following solution? Please check my answer? Chemistry

0.02 M CuSO4   Can you check my work? Since CuSO4 is a m + nm, it is an ionic compound and will break up into ions in a polar? solution.   (0.02 mol CuSO4 / 1.0 L soln)(2 ions/1 mol CuSO4) =... more

01/27/16

CHEM HELP PLEASE? Solution problem involving mass percent? What is the mass % of ammonium chloride in the solution?

At 20°C, a 3.54 M aqueous solution of ammonium chloride has a density of 1.0512 g/mL. The formula weight of NH4Cl is 53.50 g/mol.options:6.953.360.2974.1018.00I know mass % = mass of solute/mass of... more

12/16/15

solve this system of equations

x+3y=-5 9x+30y=-48
Solutions Math Algebra 1

11/30/15

Solve the equation...

Solve sin(2θ) = cos(θ) for 0 ≤ θ < 2π (Hint: there will be a total of 4 solutions!)
Solutions Interval Cosine

11/22/15

2sin(pi/3x) =sqrt2

Find all solutions on the interval 0< (or equal to) theta < 2pi   Help! Show steps please. thanks

11/22/15

cos^3(t) = -cos (t)

Find all solutions on the interval [0,2pi)  Please help and show steps!!   Thank you! 
Solutions Integers Decimals

11/22/15

2cos (3t) = -1

Help!! Find all solutions. Please show steps.   Thank you!
Solutions Algebra Equation

10/28/15

application problem

You have two solutions one contains 40% acid, the other 10% acid. You require 10 gallons of a 20% solution. How much of the 10% should you use? I have to write an equation and solve.

application problem

one solution contains 40% alcohol. A second contains 60%. You need 20 L of 45% solution. How many L of the 40% should be used. I have to write an equation and solve
Solutions Math Algebra

10/06/15

Inequalities

On my math paper I had the following equation:   5/4(x+4) ≤ ½(x+8) -8   This is my work:   5/4(x+4) ≤ ½(x+8) -8 4(5/4(x+4) ≤ ½(x+8) -8) 5(x+4) ≤ 2(x+8) -32 5x+20 ≤ 2x+16-32 -2x    ... more
Solutions Algebra 2 Equations

08/25/15

Which of the following is the solution to the equation 25^2c = square root of 5^(4c + 16) ?

Which of the following is the solution to the equation 25^2c = square root of 5^(4c + 16) ?Select one:A. c = -5 over 2B. c = 7 over 2C. c = 4D. c = -7/2
Solutions Algebra 2 Equations

08/25/15

Which of the following is the solution to the equation 25(z + 4) = 125 ?

Which of the following is the solution to the equation 25(z + 4) = 125 ?Select one:A. z = 5.5B. z = 3.5C. z = -2.5D. z = -0.5
Solutions

06/23/15

2x-y=4 x+5y=24

Solutions
Solutions

06/04/15

Can you please help me

A biologist has a 25% acetic solution and a 40% acetic solution. How many cubic centimeters of the 40% solution should be mixed to obtain 240 cc of a 30% solution?

05/13/15

math help????????

Write a system of three linear equations in three variables that has (2,1,5) as a solution. (There are many possibilities.) Explain the process you used to write an equation.
Solutions

04/21/15

what is the solution set for 0=x^2-4.75x+3

I am looking for a solution for this problem

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