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anonymous

  • one year ago

Can someone help me?

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  1. anonymous
    • one year ago
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    An expression is shown below: 3(m + 5 + 9m) Part A: Write two expressions that are equivalent to the given expression. Part B: Show that one of your expressions in Part A is equivalent to the given expression using algebraic properties. Explain which properties you used. Part C: Show that your other expression from Part A is equivalent to the given expression by substituting a number for m.

  2. Mertsj
    • one year ago
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    What test is this?

  3. anonymous
    • one year ago
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    its not a test

  4. Mertsj
    • one year ago
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    For the first part, distribute the 3. That gives you one equivalent expression.

  5. Mertsj
    • one year ago
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    To get a second equivalent expression, add m+9m. That gives you a second equivalent expression.

  6. anonymous
    • one year ago
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    what do you mean by distribute?

  7. Mertsj
    • one year ago
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    3(x+4)=3x+12

  8. Mertsj
    • one year ago
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    I distributed the 3

  9. anonymous
    • one year ago
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    15+30m

  10. anonymous
    • one year ago
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    @Mertsj

  11. Mertsj
    • one year ago
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    3(m+5+9m)=3m+15+27m You don't have to combine the like terms according to the directions.

  12. anonymous
    • one year ago
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    ok

  13. Mertsj
    • one year ago
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    For the second part, explain that you used the distributive property like this: 3(m+5+9m)=3(m)+3(5)+3(9m)

  14. Mertsj
    • one year ago
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    For the third part pick a number like 2 and use the original expression and your other expression from part 2 and replace m with 2 in both expressions and show that you get the same answer for both.

  15. anonymous
    • one year ago
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    @Mertsj so my two equivalent expressions are 15+30m and 3m+15+27m

  16. Mertsj
    • one year ago
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    When you distribute the 3 you get 3m+15+27m That's one of the equivalent expressions.

  17. Mertsj
    • one year ago
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    When you add m +9m you get 3(5+10m) That's the other equivalent expression

  18. anonymous
    • one year ago
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    oh ok

  19. anonymous
    • one year ago
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    BTW~ thank you so much @Mertsj

  20. Mertsj
    • one year ago
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    yw

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