the sum of the interior angles of a quadrilateral is 360°
[360 - (40 * 2)] : 2 =
280 : 2 =
140°
-------------------------------
140 + 140 + 40 +40 = 360°
1)a > -5
2)d <span>≤ 4
</span>3)c <span>≥ 6
</span>4)d < 12
5)e <span>≤ 8
</span>6)h > 10
The average atomic mass is 6.92X
How do we compute the average atomic mass?
In a bid to calculate the average atomic mass, we multiply the fraction of each isotope by the mass number , then add them together.
This is more like weighted average, as shown below:
average atomic mass=(mass number of first isotope*fraction)+(mass number of second isotope*fraction)
average atomic mass=(6X*7.59%)+(7X*92.41%)
average atomic mass= 6.92X
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The answer is 7.9 hope this helps.
Answer:
quarts
Step-by-step explanation:
Total amount of drinks = 
+ 
You would want to make the denominators the same before adding them, so I will multiply the first fraction by 2 and the second one by 3 so their denominators are 6.
+ = 
+ 
Now we can directly add them together while keeping the denominator the same.
+ = quarts
