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Beautiful_Lier96

  • 2 years ago

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 ?

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  1. KonradZuse
    • 2 years ago
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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...

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

  3. KonradZuse
    • 2 years ago
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    Still here?

  4. Beautiful_Lier96
    • 2 years ago
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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 ?

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

  6. Beautiful_Lier96
    • 2 years ago
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    yea

  7. KonradZuse
    • 2 years ago
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    What happened to this?

  8. Beautiful_Lier96
    • 2 years ago
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    i totally confused myself

  9. KonradZuse
    • 2 years ago
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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?

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

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

  12. Beautiful_Lier96
    • 2 years ago
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    m- 20. because it would turn into 410

  13. Beautiful_Lier96
    • 2 years ago
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    @KonradZuse ?

  14. KonradZuse
    • 2 years ago
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    yes, correct.

  15. Beautiful_Lier96
    • 2 years ago
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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 ?

  16. KonradZuse
    • 2 years ago
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    kk

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