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Yanka [14]
3 years ago
6

Which of the following is closest to 27.8 × 9.6?. A. 280. B. 300. C. 2,800. D. 3,000

Mathematics
1 answer:
frozen [14]3 years ago
3 0
In order to know which number is closest to 27. 8 x 9.6, we must first get the product between the two numbers. So, 27.8 x 9.6 is equal to 266.88. To round this off, we get 267. Among the given choices, the number that is closest to 267 is only 280. Therefore, the correct answer would be option A. 
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Divide 800ml into ratio 3:7
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3+7 = 10, which means that the ratio will provide parts that are in multiples of 10 depending on the total

so take 10x = 800 

x = 80.

Then multiply this by the numerator and denominator 

3*80/7*80 = 240/560. 
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Percent of 51,300-45,800
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Step-by-step explanation:

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Find a value for x if 1/x > x
Ymorist [56]

Since x can't be zero (it sits at the denominator of the left hand side), let's split cases:

If x is positive

It this case, we can multiply both sides by x without changing the inequality sign:

\dfrac{1}{x} > x \iff 1 > x^2 \iff x \in (-1,1)

But since we're assuming that x is positive, we can only accept the numbers between 0 and 1.

If x is negative

It this case, in order to multiply both sides by x we have to change the inequality sign:

\dfrac{1}{x} > x \iff 1 < x^2 \iff x \in (-\infty,-1) \cup (1,\infty)

But since we're assuming that x is negative, we can only accept the numbers which are smaller than -1.

So, putting all the pieces together, we have that the solution is given by the following interval:

(-\infty, -1) \cup (0,1)

6 0
3 years ago
Find the number if 6% of it is 20% of 6<br> thanks plz help!!!
Y_Kistochka [10]

Answer:

20.

Step-by-step explanation:

We can begin by calculating 20% of 6:

0.2 × 6= 1.2

If 1.2 is 6% of the number, we can set up an equation like this:

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Now, divide on both sides, giving us:

x= 20.

6 0
3 years ago
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