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olga55 [171]
3 years ago
10

PLEASE HELP ASAP WILL MARK THE BRAINLEST DUE TODAY NEED YA'LL HELP

Mathematics
2 answers:
tangare [24]3 years ago
3 0

Answer:

nitrogen

Step-by-step explanation:

By far, the most abundant gas in the Earth's atmosphere is nitrogen, which accounts for about 78% of the mass of dry air. Oxygen is the next most abundant gas, present at levels of 20 to 21%

taurus [48]3 years ago
3 0

Question 1.

Out of the options I would say Nitrogen is the most abudnats in Earth's atmosphere.

Question 2.

The best answer is the thermosphere, molecules with enough energy can escape through this atmosphere.

Question 3.

The troposphere is the most dense, it's 5 to 9 miles long. Basically every type of weather is in this region.

Question 4.

The mesosphere is where meteorites burn before reaching the surface of Earth.

Question 5.

The exosphere is extremly low, the farther you are away from Earth the lower the density.

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What is 1 2/5 × 2<br>what is 1/4 × 1​
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Answer:

1).  2\frac{4}{5}

2).  \frac{1}{4}

Step-by-step explanation:

1). 1\frac{2}{5}*2

Convert mixed number to improper fraction: a\frac{b}{c} =\frac{a*c+b}{c}

1\frac{x2}{5} =\frac{1*5+2}{5} =\frac{7}{5}

\frac{7}{5} *2

\frac{7}{5} *2

Apply the fraction rule: \frac{a}{b}*c =\frac{a*c}{b}

\frac{7}{5} *2=\frac{7*2}{5}

=\frac{7*2}{5}

Multiply the numbers: 7*2=14

=\frac{14}{5}

Convert improper fractions to mixed numbers: \frac{14}{5}

\frac{14}{5}

Write the problem in long division format:

\begin{matrix}5\overline{|\smallspace14}\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}

Divide 14 by 5 to get 2

\begin{matrix}\space\space\space\space\space\space\emptyspace2\space\space\space\space\space\space\space\space\space\space\space\space\\ 5\overline{|\smallspace14}\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}

Multiply the quotient digit (2) by the divisor 5

\begin{matrix}\space\space\space\space\space\space\emptyspace2\space\space\space\space\space\space\space\space\space\space\space\space\\ 5\overline{|\smallspace14}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace1\emptyspace0}\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}

Subtract 10 from 14

\begin{matrix}\space\space\space\space\space\space\emptyspace2\space\space\space\space\space\space\space\space\space\space\space\space\\ 5\overline{|\smallspace14}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace1\emptyspace0}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\space\space\emptyspace4\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}

The solution for long division of \frac{14}{5} is 2 with a remainder of 4

2\quad \mathrm{Remainder}\quad \:4

Convert to mixed number: Quotient\frac{Remainder}{Divisor}

\frac{14}{5} =2\frac{4}{5}

=2\frac{4}{5}

2\frac{4}{5}

Convert \frac{4}{5} to decimal using long division

\frac{4}{5}

Divide 4 by 5 to get 0

\begin{matrix}\space\space\space\space\emptyspace0\space\space\space\space\space\space\space\space\space\space\space\space\\ 5\overline{|\smallspace4}\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}

Multiply the quotient digit (0) by the divisor 5

\begin{matrix}\space\space\space\space\emptyspace0\space\space\space\space\space\space\space\space\space\space\space\space\\ 5\overline{|\smallspace4}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace0}\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}

Subtract 0 from 4

\begin{matrix}\space\space\space\space\emptyspace0\space\space\space\space\space\space\space\space\space\space\space\space\\ 5\overline{|\smallspace4}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace0}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\emptyspace4\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}

Add a decimal place and a zero to the dividend

Bring down the zero from the dividend

\begin{matrix}\space\space\space\space\emptyspace0.\space\space\space\space\space\space\space\space\space\space\space\\ 5\overline{|\smallspace4.0}\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace0}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\emptyspace4\emptyspace0\space\space\space\space\space\space\space\space\space\space\end{matrix}

Divide 40 by 5 to get 8

\frac{40}{5} =8

The solution for long division of \frac{4}{5} is 0.8

=2+0.8

Add 2+0.8=2.8

2). \frac{1}{4} *1

Multiply \frac{1}{4} *1=\frac{1}{4}

=\frac{1}{4}

Anything multiplied by 1 is the same number.

Divide the the numbers \frac{1}{4} to get decimal form

Divide 1 by 4

\frac{1}{4} =0.25

=0.25

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