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kirill115 [55]
2 years ago
15

About 0.6 of all the students in the fifth grade are boys. If the fifth grade has 55 students, how many of

Mathematics
2 answers:
Nataly [62]2 years ago
6 0

Answer: 33 students

Step-by-step explanation:

If 0.6 of all students are boys, then 55*0.6 students in fifth grade are boys.

55*0.6 = 33 students

Dovator [93]2 years ago
5 0

Answer:

33

Step-by-step explanation:

Let x represent the amount of boys then...

x=0.6*55

Simplify the equation

x=\frac{6}{10}*55\\x=\frac{3}{5}*55\\x=\frac{165}{5}\\x=33

33 of the students are boys

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Pls help due in 10 minutes!!!
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Answer:

\sf 500,000,000,000=5 \times 10^{11}

\sf 0.00000000005=5 \times 10^{-11}

Step-by-step explanation:

<u>Scientific notation</u>

\large\boxed{a \times 10^n}  

where:

  • 1\leq a < 10
  • n is any positive or negative <u>whole number</u>.

To convert a number into scientific notation, <u>move</u> the decimal point to the <u>left or right</u> until there is <u>one digit</u> to the left of the decimal point.

The number of times you have moved the decimal point is n.

  • If the decimal point has moved to the <u>left</u>, n is positive.
  • If the decimal point has moved to the <u>right</u>, n is negative.

To convert 500,000,000,000 into scientific notation, move the decimal point <u>11 places to left</u>, so a = 5.  As we have moved the decimal point 11 places to the left, the exponent "n" is 11 and is <u>positive</u>.

\implies \sf 500,000,000,000=5 \times 10^{11}

To convert 0.00000000005 into scientific notation, move the decimal point <u>11 places to the right</u>, so a = 5.  As we have moved the decimal point 11 places to the right , the exponent "n" is 11 and is <u>negative</u>.

\implies \sf 0.00000000005=5 \times 10^{-11}

Learn more about scientific notation here:

brainly.com/question/28235385

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2 years ago
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