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4 years ago

10

the cycle of processes by which water circulates between the earth's oceans, atmosphere, and land, involving precipitation as ra

in and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.

1 answer:

lina2011 [118]4 years ago

6 0

Yes they do because the sun evaporates the water and then it circles around and ends up in the sky

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What is the solution for the equation 4x − 10 = 2x? x = ___. (Input whole number only).

White raven [17]

4x-10=2x subtract 2x from both sides

2x-10=0 add 10 to both sides

2x=10 divide both sides by 2

x=5

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A statement with the greatest acceptance among scientists is the______

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3 years ago

What is the answer to 9x8 2/3

Ira Lisetskai [31]

The answer is 78. This is because you change 8 2/3 into a improper fraction which is 26/3. Then do 26/3×9/1. You should cross cancel so cancel out 3 and change it into 1 and change 9 into 3. So now your problem is 26×3=78.
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4 years ago

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Dale made $105 for 7 hours of work. At the same rate, how much would he make for 9 hours of work? helppp please

Minchanka [31]

You would have to divide 105 by 7 and get an answer then you times that answer by nine and get your answer

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3 years ago

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Prove that if a and b are positive integers whose sum is a prime p, their greatest common divisor is 1.

Tasya [4]

Proof by contadiction.

Let assume there exist such positive integers $a$ and $b$ whose sum is a prime number $p$ , that their greatest common divisor is greater than 1.

$a,b\in\mathbb{Z^+}\\d=\text{gcd}(a,b)>1\\\\a=de\\b=df\\e,f\in\mathbb{Z^+}\\\\a+b=p\\de+df=p\\d(e+f)=p\\$

Since $p$ is a prime number and $d>1$ , then $d=p \wedge e+f=1$ , but we assumed earlier that $e,f\in\mathbb{Z^+}$ , and there are no two positive integers that sum up to 1.

q.e.d.

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