braniyacford2o braniyacford2o
  • 08-12-2019
  • Mathematics
contestada

Which of the following is the solution set to the inequality −25x+14>20?

Select one:
A. x < -64
B. x > -64
C. x < -15
D. x > -15

Respuesta :

calculista
calculista calculista
  • 14-12-2019

Answer:

Option C. [tex]x < -15[/tex]

Step-by-step explanation:

The correct inequality is

[tex]-\frac{2}{5}x+14 >20[/tex]

Solve for x

subtract 14 both sides

[tex]-\frac{2}{5}x+14-14 >20-14[/tex]

[tex]-\frac{2}{5}x >6[/tex]

Multiply by -1 both sides

[tex]\frac{2}{5}x < -6[/tex]

Multiply by 5/2 both sides

[tex]x < -6(\frac{5}{2})[/tex]

[tex]x < -15[/tex]

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