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asambeis [7]
3 years ago
11

Which number line represents the solution set for the inequality –0.5x ≥ 4?

Mathematics
2 answers:
klasskru [66]3 years ago
5 0
Hello :
<span>–0.5x ≥ 4...(1) 
multip by -2 : x </span><span>≤ -8
</span><span>number line represents the solution is :
</span>-∞ـــــــــــــــــــــــــــــــــــــ[8-ــــــــــــــــــــــــــــــــــــ> +∞ 
Archy [21]3 years ago
3 0

Answer:

The region to the left of -8 including  -8 in the number line

Step-by-step explanation:

Given in an inequality in variable x as

-0.5x\geq 4

To solve for x we divide by -0.5

Since we divide by a negative number we find that inequality is reversed.

x\leq \frac{4}{-0.5} =-8

So solution is

x\leq -8

Hence the solution is the region to the left of -8 in the number line.

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When solving a 2 step inequality, when do you flip the inequality sign, i keep getting these questions wrong, pls help, i mark b
vaieri [72.5K]
You flip the signs when you are dividing by a negative value.
-2x+3>15
-2x>15-3
-2x>12
x<12/-2
x<-6
Now to test this
Try putting x in the original equation when it is -5.
-2(-5)+3>15
10+3>15
13>15
This is false because our answer says x is less than -6.
Now any value less than -6 will work so let's go with -7.
-2(-7)+3>15
14+3>15
17>15
This result is True.
Hope this helps out!







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Read 2 more answers
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