OregonDuck
  • OregonDuck
@ChrystalC
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
OregonDuck
  • OregonDuck
Arlene is showing her work in simplifying −7.9 + 8.2 − 3.4 + 2.1. Identify any errors in her work or in her reasoning. Write feedback to Arlene explaining the mistake she made and how to correct her work. Step Work Reasoning −7.9 + 8.2 − 3.4 + 2.1 Original problem 1 −7.9 + 8.2 + (−3.4) + 2.1 Additive inverse 2 −7.9 + (−3.4) + 8.2 + 2.1 Associative property 3 (−7.9 + (−3.4)) + (8.2 + 2.1) Commutative property 4 −11.3 + 10.3 Simplify 5 −1 Simplify
OregonDuck
  • OregonDuck
my teacher said the properties in steps 2 & 3 are misidentified but i do not see any errors
anonymous
  • anonymous
i tried each step but i don't see any errors

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OregonDuck
  • OregonDuck
tag people cause my teacher asked me to redo this because there are errors in step 2 and 3
OregonDuck
  • OregonDuck
it is the way they are indtified
anonymous
  • anonymous
Ok
OregonDuck
  • OregonDuck
2 −7.9 + (−3.4) + 8.2 + 2.1 Associative property 3 (−7.9 + (−3.4)) + (8.2 + 2.1) Commutative property
OregonDuck
  • OregonDuck
associative and commutative is the part that is wrong
OregonDuck
  • OregonDuck
@ali2x2
OregonDuck
  • OregonDuck
@Mehek14
OregonDuck
  • OregonDuck
@Daniel14
OregonDuck
  • OregonDuck
@misty_fox
OregonDuck
  • OregonDuck
@mathmath333
OregonDuck
  • OregonDuck
@undeadknight26
OregonDuck
  • OregonDuck
@Cookie_2046
OregonDuck
  • OregonDuck
anyone?!?!?
mathmath333
  • mathmath333
i think the second should be commutative and third should be associtive , not sure
OregonDuck
  • OregonDuck
yeah that sounds right THXS SO MUCH

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