Explore BrainMass

Explore BrainMass

    Operations and Inequalities

    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!

    1. What is the inherent meaning and justification of cross multiplication as it applies to solving an equality?

    2. Is | x -2 | the same as | 2 - x |? Please explain your answer.

    3. How do you express the following mathematically?
    a. y is at least 3
    b. y is more than 3
    c. y is at most 3
    d. y is less than 3

    © BrainMass Inc. brainmass.com March 4, 2021, 7:51 pm ad1c9bdddf
    https://brainmass.com/math/basic-algebra/operations-inequalities-126906

    Solution Preview

    1. What is the inherent meaning and justification of cross-multiplication as it applies to solving an equality?

    When you cross-multiply, you're really multiplying each side by n/n,
    where n is the denominator of the other side:

    a c
    - = -
    b d

    a d c b
    - * - = - * -
    b d d b

    Note that this ...

    Solution Summary

    Operations and inequalities are investigated. The solution is detailed and well presented.

    $2.49

    ADVERTISEMENT