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svetoff [14.1K]
3 years ago
6

Give the inequality -8<2 explain what happens when you multiply or divide both sides by 2 and what happens when you multiply

or divide both sides by negative 2
Mathematics
1 answer:
rodikova [14]3 years ago
4 0

Answer:

If we multiply both the sides by 2, the inequality signs remains the same.

If we divide both sides by -2, the sign changes.

Step-by-step explanation:

The given inequality is

-8<2

If we multiply both the sides by 2, we get

-8 * 2 < 2*2

-16 < 4

The inequality signs remains the same.

On the other hand if we divide both sides by -2, we get -

-8/-2 < 2/-2

4 > -1

Here the sign changes.

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4. Evan took an exam that had 50 questions. He got 38 of the questions correct. What percentage did he
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Josue broke a cell sample into 12 batches, each weighing 6.9 x 10 ^-10
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Using proportions, it is found that the original sample weighed 8.28 \times 10^{-9} grams.

  • This question is solved by <em>proportions</em>, using a rule of three.
  • The weight of 1 batch, in grams, is of 6.9 \times 10^{-10}. How much do the sample of 12 batches weigh?

The rule of three is:

1 batch - 6.9 \times 10^{-10} grams.

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Applying cross multiplication:

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Applying scientific notation:

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A company's profit in the first half of the year is $150,000 more than the second half of the year. If the total profit for the
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Step-by-step explanation:

Let the profit for second half of year be x

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Hence Profit for First half of the year is $450,000.

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