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maria [59]
2 years ago
10

Which sentence expresses the central idea of this

Biology
1 answer:
aivan3 [116]2 years ago
5 0
The answer is: In recent years, scientists have discovered fossils from long ago that glaciers have hidden






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Anastomosis is the term meaning sticking together two structures that are normally separated
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In the presence of sunlight, Vitamin D precursors are produced. This is important for the transport of sodium in our intestines.
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Mike earned scores of 88,91,75,and 72 on four math tests determine his score on the fifth test if his average for five tests was
My name is Ann [436]

Explanation : x = 79 marks

The marks scored by Mike on four math test are 88,91,75 and 72.

Average of marks, A = 81

Let in fifth test he scores x marks.

The formula for finding average is :

A=\dfrac{sum\ of\ scored\ marks}{no.\ of \ tests}

81=\dfrac{88+91+75+72+x}{5}

\dfrac{326+x}{5}=81

x=79

In the fifth test he scores 79 marks.

Hence, this is the required solution.

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