The area of a gymnasium floor is 264 square yards the floor is 11 yards wide how long is the floor
2 answers:
The equation to find area is:
A is your area, l is your length, and w is your width. Let's insert the numbers we already have, which are our area and our width.
To solve this, we must divide both 11l and 264 by 11, to get our variable l all alone on one side.
264 / 11 = ?
Solve this, and you'll have your length :)
A is your area, l is your length, and w is your width. Let's insert the numbers we already have, which are our area and our width.
To solve this, we must divide both 11l and 264 by 11, to get our variable l all alone on one side.
264 / 11 = ?
Solve this, and you'll have your length :)
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Answer:
9419.3 years.
Step-by-step explanation:
Let the initial amount of C-14 be 100 units.
We have been given that a hiker in Africa discovers a skull that contains 32% of its original amount of C-14. We are asked to find the age of the skull.
We will use half life formula to solve our given problem.
, where,
A = Amount left after t years,
a = Initial amount,
t = time,
h = Half life.
We know that half-life of C-14 is 5730 years.
32% of 100 units would be 32.
Now, we will take natural log of both sides.
Using log property , we will get:
Therefore, the age of skull is approximately 9419.3 years.