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erastovalidia [21]
3 years ago
10

I don’t understand why is it “not possible”.

Mathematics
1 answer:
Zanzabum3 years ago
5 0

Let's solve the inequalities: we have

-\dfrac{2}{3}x

and

\dfrac{3}{4}x

Since the two inequality must be true at the same time (there is an "and" between the two), we should find a number that is, at the same time, greater than -6, and smaller than -8. But since -6 is greater than -8, a number greater than -6 is automatically greater than -8 as well. So, it is impossible for a number to be greater than -6 and smaller than -8.

If negative numbers confuse you, this example shows the same (impossible) logic: we can't ask for a number to be greater than 10, but smaller than 3.

As for the second exercise:

3x-9\leq 9 \iff 3x \leq 18 \iff x \leq 6

4-x\leq 3 \iff -x \leq -1 \iff x \geq 1

So, a number satisfies this system if it is smaller than 6 or greater than 1. This means that at least one of the conditions must be satisfied, and this is always the case:

  1. If we choose a number smaller than 1, the second condition is met
  2. If we choose a number between 1 and 6, both are met
  3. If we choose a number greater than 6, the first condition is met

So, whatever number we choose, at least one of the conditions will be true, and the logical "OR" will be satisfied.

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Can someone help with this question
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12 × 10 × 20 = 2400 cm^3.

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2 years ago
Li brought five lip bombs each of the lip bombs Costs the same amount she spent a total of $7.25 A write an equation that repres
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Answer:

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C) 5c = 7.25

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Each lip balm costs $1.45! Hope this helps! Please award brainliest if helped.




4 0
3 years ago
Read 2 more answers
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Answer:

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