Explore BrainMass
Share

Explore BrainMass

    6 Algebra Problems: Word Problems, Systems of Equations and Inequalities

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

    Please see the attached file for the fully formatted problems.

    10. Amy paid $94.58 for a pair of running shoes during a 30%-off sale. What was the regular price?____

    17. Solve by the elimination method.
    3r-5s=-24
    5r+3s=62
    What is the solution of the system?__
    (Type an ordered pair. Type an integer or a fraction. Type N if there is no solution Type I if there are infinity many solutions.)

    20. Solve
    0.7x+9< 1.5x-2
    The solutions is {x|x < __}
    (Simplify your answer. Type an inequality symbol; then type an integer or a decimal)

    21. Solve by the substitution method
    6x+5y = -19
    x = -1-3y
    What is the solution of the system?___
    (Type an ordered pair. Type N if there is no solution)

    23. Soybean meal is 12% protein: cornmeal is 6% protein. How many pound of each should be mixed together in order to get 240-lb mixture that is 7% protein?

    How many pounds of the cornmeal should be in the mixture?
    ___ pounds
    How many pounds of the soybean meal should be in the mixture?
    ___ pounds

    43. Solve
    5/8x + 1/16x = 7/16 + x
    The solution is x = ___
    (Simplify your answer. Type an integer or a fraction)

    45. Solve by elimination method
    3x+4y=2
    6x+8y=4
    What is the solution of the system? ___
    (Type an ordered pair. Type an integer or a fraction. Type N if there is no solution. Type I if there are infinitely many solutions.)

    54. Solve
    -0.3x<-9 {x|__}
    The solution is {x|_>10_}
    (Type an inequality)

    © BrainMass Inc. brainmass.com October 9, 2019, 10:17 pm ad1c9bdddf
    https://brainmass.com/math/basic-algebra/6-algebra-problems-word-problems-systems-of-equations-and-inequalities-215272

    Attachments

    $2.19