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OleMash [197]
3 years ago
9

The sum of three times a number and -4 is at least twice the number plus 8

Mathematics
2 answers:
kicyunya [14]3 years ago
8 0

Answer:

x<=12

Step-by-step explanation:

3x+(-4)<=2x+8

3x-4<=2x+8

3x-2x-4<=8

x-4<=8

x<=8+4

x<=12

kenny6666 [7]3 years ago
7 0

Answer:

12 ≤ x

Step-by-step explanation:

3x-4 ≥ 2x+8

3x-3x-4 ≥ 2x-3x+8

-4-8 ≥ -1x+8-8

-12 ≥ -1x

You divide -1 on both sides and get...

12 ≤ x

Because you have to switch the sign around. I hope this helps!!

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the area of square Garden is 625 metre square find its length its perimeter and find the cost of fencing it with 5 round at Rs 2
Mazyrski [523]

Answer:

Length=25m

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Step-by-step explanation:

The area of a square

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According to the question the equation is

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x=√625

x=25

The parameter is

25×4

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So

1 meter costs 25

100 " " 25×100

2500

1 round = 100 meter

So

5 round cost 2500×5

12500

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Crank
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