srambarrat306
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Choose Yes or No to tell whether the symbol will be reversed when the variable is isolated in each inequality.
–10.5 < 3a
b/6 ≤ 7
–4.5c > 9
–21/5 ≤ –5/2d
Please I need this answer right away!!!

Respuesta :

mhanifa

Answer:

  • No, no, yes, yes

Step-by-step explanation:

–10.5 < 3a ⇒ -3.5 < a ⇒ a > -3.5

  • no as variable has positive coefficient

b/6 ≤ 7 ⇒ b ≤ 42

  • no as variable has positive coefficient

–4.5c > 9 ⇒ c < - 2

  • yes as variable has negative coefficient

–21/5 ≤ –5/2d ⇒ (-21/5)*(-2/5) ≥ d ⇒ d ≤ 42/25

  • yes as variable has negative coefficient

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