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irina1246 [14]
3 years ago
15

Where does the oxygen that is used during cellular respiration in animals

Mathematics
1 answer:
Softa [21]3 years ago
6 0

Answer:

A. Air that is breathed in :)

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29.
Elis [28]

Answer:

Sum of their present ages  = 20 years

Step-by-step explanation:

Present age :

   Neha's age = x years

Reemas' age = x - 4

After 5 years:

       Neha's age = (x +5) years

       Reemas' age = (x - 4 + 5 ) = x + 1

Sum of the ages of Reema and Neha will be 30

Therefore,    

x + 5  + x + 1 = 30

x + x + 5 + 1 = 30

   2x +  6    = 30

            2x = 30 - 6

           2x = 24

             x = 24/2

            x = 12

Neha's age = 12 years

Reema's age = 12 - 4 = 8 years

Sum of their present ages = 12 + 8 = 20 years

4 0
3 years ago
Stephanie drew this triangle how many obtuse triangle’s are the triangle have
Mice21 [21]
The triangle has no obtuse angles.

Obtuse angles are greater than 90 degrees, or are wider than a right angle. These are all acute angles in this diagram because they are all less than 90 degrees.
3 0
3 years ago
Read 2 more answers
Simplify the expression<br> (5+4n)(2)
Nesterboy [21]

Answer:

8n+10

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A. 2 – 8 - [- 4 – (-6 + 3 -9)] X ( -10 ÷2) suprimir los signos de agrupacion
Sedaia [141]
<h3> Answer: 34</h3><h3 /><h3 /><h3 /><h3>Step-by-step explanation: 2 – 8 - [- 4 – (-6 + 3 -9)] X ( -10 ÷2)</h3><h3>Así es como resolví esta pregunta: usé PEMDAS significa paréntesis, exponentes, multiplicación o</h3><h3> División, suma y resta...</h3><h3>Espero que la hayan resuelto bien!</h3>

7 0
3 years ago
Given any two numbers whicj is greater the lcm of the numbers and the gcf of the nmbers and why
ladessa [460]
The lcm because a multiple is always greater then a factor.
7 0
4 years ago
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