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LuckyWell [14K]
3 years ago
14

What is the solution set of this inequality?

Mathematics
1 answer:
Gnoma [55]3 years ago
8 0

Answer:

A.

x\ge \:4

Step-by-step explanation:

8(x-5) -3x\geq -20\\\\\mathrm{Expand\:}8\left(x-5\right)-3x:\quad 5x-40\\\\5x-40\ge \:-20\\\\\mathrm{Add\:}40\mathrm{\:to\:both\:sides}\\\\5x-40+40\ge \:-20+40\\\\Simplify\\\\5x\ge \:20\\\\\mathrm{Divide\:both\:sides\:by\:}5\\\\\frac{5x}{5}\ge \frac{20}{5}\\\\Simplify\\\\x\ge \:4

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Step-by-step explanation:

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8 0
3 years ago
Marshall earns a salary of $36,000, and each
Anton [14]

Answer:

Let Marshall's salary be  

S

m

Let Jim's salary be

     

S

j

Let the count in years be  

n

S

m

=

$

36000

+

4000

n

S

j

=

$

51000

+

1500

n

Set  

S

m

=

S

j

For convenience lets drop the $ symbol

⇒

36000

+

4000

n

 

=

 

51000

+

1500

n

Subtract  

1500

n

and

36000

from both sides

4000

n

−

1500

n

=

51000

−

36000

2500

n

=

15000

Divide both sides by 2500

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=

15000

2500

=

150

25

=

6

Step-by-step explanation:

7 0
3 years ago
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