Explore BrainMass

Explore BrainMass

    Algebra equations

    Not what you're looking for? Search our solutions OR ask your own Custom question.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    May I have step by step solutions to help me. thank you! I have the questions below as well as an attached word and pdf file.

    1. Graph each equation to find the solution of the system.
    x - 2y = 4
    2x + y = 6

    2. Draw a line on the grid (the Cartesian plane) so that the system of no equations has NO solution.

    3. Darlene made some trail mix by combining raisins and peanuts. Raisins cost $3.00 a pound and peanuts cost $4.20 per pound. If she ended up with three pounds of trail mix that cost $3.36 per pound, how many pounds of raisins did she use?

    4. Harriet needs to dilute a medicine before giving it to a patient. She has a 40% solution but needs a 25% solution. How much water does she need to add (note the water is a 0% solution) so that she will have 0.5 liter of the 25% solution?

    5. Simplify:

    6. Rationalize the denominator:
    7. The radius, r, of a sphere with volume V is given by the formula r= . If a sphere has radius 5 inches, what is its volume?

    8. Solve for x:

    Please see attachments for all equations

    © BrainMass Inc. brainmass.com June 7, 2023, 2:44 pm ad1c9bdddf
    https://brainmass.com/math/basic-algebra/algebra-equations-graphing-22520

    Attachments

    Solution Preview

    Please see the attachment. (Word format)

    1. Solve the system

    The solution is
    2. Draw a line such that the system of equations has no solution.

    I only need to ...

    Solution Summary

    Topics in this set include solving by graphing, word problems for mixtures and dilutions, rationalizing denominator, and volume of a sphere.

    $2.49

    Free BrainMass Quizzes

    • Graphs and Functions

      This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.

    • Know Your Linear Equations

      Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.

    • Multiplying Complex Numbers

      This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.

    • Geometry - Real Life Application Problems

      Understanding of how geometry applies to in real-world contexts

    • Probability Quiz

      Some questions on probability

    View More Free Quizzes