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padilas [110]
3 years ago
11

Which of the following is the solution to the compound inequality below? 3/2x+1/5≥-1 or -1/2 x-7/3≥ 5

Mathematics
2 answers:
borishaifa [10]3 years ago
8 0

\frac{3}{2}x + \frac{1}{5} \geq -1

(10)\frac{3}{2}x +(10) \frac{1}{5} \geq -1(10)  

15x + 2 ≥ -10

<u>        -2  </u>   <u> -2  </u>

     15x ≥ -12

      \frac{15x}{15} \geq \frac{-12}{15}

         x ≥ \frac{-12}{15}

         x ≥ \frac{-4}{5}

OR

-\frac{1}{2} x - \frac{7}{3} \geq 5

-(6)\frac{1}{2} x - (6)\frac{7}{3} \geq 5(6)

-3x - 14 ≥ 30

<u>      +14</u>    <u>+14 </u>

     -3x ≥ 44

       \frac{-3x}{-3} \leq \frac{44}{-3}

       x \leq -\frac{44}{3}        

Graph:  ←--------  -\frac{44}{3}      \frac{-4}{5} ----------→

Interval Notation: (-∞, -\frac{44}{3}] U [\frac{-4}{5}, ∞)

Evgen [1.6K]3 years ago
5 0

Answer:

For given relation the possible values for x can be given by

x\leq -\frac{44}{3}     or   x> -\frac{12}{15}

Step-by-step explanation:

Given equations are

\frac{3x}{2}+\frac{1}{5}> -1 -------(A)

and -\frac{x}{2}-\frac{7}{3}\geq 5 -------(B)

First consider equation (A)

\frac{3x}{2}+\frac{1}{5}> -1 =>\frac{3x}{2}> -\frac{6}{5}

=>x> -\frac{12}{15}     -------(C)

Now consider equation (B)

-\frac{x}{2}-\frac{7}{3}\geq 5=>\frac{x}{2}\leq -\frac{22}{3}

x\leq -\frac{44}{3}    ---------(D)

Using relation (C) and (D)

x\leq -\frac{44}{3}     or   x> -\frac{12}{15}

Thus for given relation the possible values for x can be given by

x\leq -\frac{44}{3}     or   x> -\frac{12}{15}

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