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Math Help - Naming the Property of real numbers Illustrated by each of the following.

  1. #1
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    Naming the Property of real numbers Illustrated by each of the following.

    1. Find the value of
    a-3+5a-2 =

    2. What is the reciprocal of -1/5?

    3. The reciprocal of 2 is ?
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  2. #2
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    Quote Originally Posted by skeeter View Post
    ...
    1. Simplifying
    a + -3 + 5a + -2 = 0

    Reorder the terms:
    -3 + -2 + a + 5a = 0

    Combine like terms: -3 + -2 = -5
    -5 + a + 5a = 0

    Combine like terms: a + 5a = 6a
    -5 + 6a = 0

    Solving
    -5 + 6a = 0

    Move all terms containing a to the left, all other terms to the right.

    Add '5' to each side of the equation.
    -5 + 5 + 6a = 0 + 5

    Combine like terms: -5 + 5 = 0
    0 + 6a = 0 + 5
    6a = 0 + 5

    Combine like terms: 0 + 5 = 5
    6a = 5

    Divide each side by '6'.
    a = 0.8333333333

    Simplifying
    a = 0.8333333333

    2. reciprocal of(-1) / 5 = -0.

    3. 0.5

    I relooked at it. Is this all correct?
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  3. #3
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    1. I used a program called Algebra Helper :s I didn't add the 0 in the Question I asked on the program. What did It do wrong? How could I solve this right
    2. 5?
    3. 1/2 or should I put 0.5 it will be the same right?
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  4. #4
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    Name the property of real numbers Illustrated by each of the following.

    1. Find the value of:
    a-3+5a-2=

    ^ Thats what it says exactly on my Exam.
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  5. #5
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    Quote Originally Posted by bdubb View Post
    Name the property of real numbers Illustrated by each of the following.

    1. Find the value of:
    a-3+5a-2=

    ^ Thats what it says exactly on my Exam.
    going to have to cut this thread off ... MHF policy does not allow help to be provided on Exams.
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  6. #6
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    It's not like the Exam you think it is its just what my Book says.. not like a test
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