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faltersainse [42]
3 years ago
15

Find the sum of 94kg 129g , 140kg and 85kg 20g

Mathematics
2 answers:
Helga [31]3 years ago
8 0

Answer:

319149g

Step-by-step explanation:

Svetach [21]3 years ago
8 0

Answer: 319.149kg

Step-by-step explanation:

recall that :

1000g = 1kg

so ,

94 kg = 94000g

140kg = 140,000g

85kg = 85,000g

Adding all together , we have

94000 + 129 + 140000 + 85000 + 20

= 319,149 g

converting back to kg , we will divide by 1000

Therefore:

319,149 g = 319.149kg

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3x + 2 ≤ 14 <br><br>-5 + 2x &gt; 15 * <br><br>-2x + 4 ≥ 18 <br><br>HaLp i don't gets
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9514 1404 393

Answer:

  1. x ≤ 4
  2. x > 10
  3. x ≤ -7

Step-by-step explanation:

We're guessing you want to solve for x in each case. You do this in basically the same way you would solve an equation.

1. 3x +2 ≤ 14

  3x ≤ 12 . . . . . subtract 2

  x ≤ 4 . . . . . . . divide by 3

__

2. -5 +2x > 15

  2x > 20 . . . . . . add 5

  x > 10 . . . . . . . . divide by 2

__

3. -2x +4 ≥ 18

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  -14 ≥ 2x . . . . . . . subtract 18

  -7 ≥ x . . . . . . . . . divide by 2

_____

<em>Additional comment</em>

The statement above that the same methods for solving apply to both equations and inequalities has an exception. The exception is that some operations reverse the order of numbers, so make the inequality symbol reverse. The usual operations we're concerned with are <em>multiplication and division by a negative number</em>: -2 < -1; 2 > 1, for example. There are other such operations, but they tend to be used more rarely for inequalities.

You will note that we avoided division by -2 in the solution of the third inequality by adding 2x to both sides, effectively giving the variable term a positive coefficient. You will notice that also changes its relation to the inequality symbol, just as if we had left the term where it was and reversed the symbol: -2x ≥ 14 ⇔ -14 ≥ 2x ⇔ x ≤ -7 ⇔ -7 ≥ x

5 0
3 years ago
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il63 [147K]

Answer:

perimeter = 2(length + breadth) \\  =2 (54 + 8) \\  = 124 \: cm

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