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Beautiful_Lier96

1.According to the rule in a certain soccor leage, the mass of the ball should be 430 grams plus or minus 20 grams. which absolute value inequality describes m, the mass of the ball in grams that satisfies the rule? A: |m-20| ( < or = ) 430 B:|m+20| ( < or = ) 430 C:|m-430| ( < or = ) 20 D:|m+430| ( < or = ) 20 My choice is D. @KonradZuse may you check and see if so ? if so can you tell me ive doone wrong ?

  • one year ago
  • one year ago

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  1. KonradZuse
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    I believe your choice is incorrect. Lets look at it this way. m SHOULD = 430. They want m +/- 20 so that's 410<430<450. This Q is set up funky tho...

    • one year ago
  2. KonradZuse
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    so if we want m +20 or m -20 which choices do we look at?

    • one year ago
  3. KonradZuse
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    Still here?

    • one year ago
  4. Beautiful_Lier96
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    A and B. sorry was doin somethin. @KonradZuse so if its post to be plus or minus 20 grams what sign would it take ?

    • one year ago
  5. KonradZuse
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    Well see this is the confusing part. |m - 20| = ? is that ( < or = ) 430?? |m +20| ( < or = ) 430???

    • one year ago
  6. Beautiful_Lier96
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    yea

    • one year ago
  7. KonradZuse
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    What happened to this?

    • one year ago
  8. Beautiful_Lier96
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    i totally confused myself

    • one year ago
  9. KonradZuse
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    It's okay. Like I said what is |m-20| and |m+20|? Which one is less than, or equal to 430?

    • one year ago
  10. Beautiful_Lier96
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    both of thejm say less than, or ewaul to 430

    • one year ago
  11. KonradZuse
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    yes, but wehat is m-20? what is m+20? Which is is less than or equal to 430?

    • one year ago
  12. Beautiful_Lier96
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    m- 20. because it would turn into 410

    • one year ago
  13. Beautiful_Lier96
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    @KonradZuse ?

    • one year ago
  14. KonradZuse
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    yes, correct.

    • one year ago
  15. Beautiful_Lier96
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    thank you very much. i had thought it would be B untill now. do you think you can help me with my other question also ?

    • one year ago
  16. KonradZuse
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    kk

    • one year ago
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