If Lana's age is L, her youngest sister is L/2 (or 0.5L) and the twins L-2. Add all these together (remember that there are two sisters who are L-2 years old):
0.5L + L-2 + L-2 + L = 45
Simplify the L's by adding them all together, we get:
3.5L - 2 - 2 = 45
3.5L - 4 = 45
Now add 4 to both sides:
3.5L = 49
Now divide both sides by 3.5
L = 49/3.5 = 14. Now we know that Laura is 14, so her youngest sister must be 7.
Answer:
The first one is 0.01667 and the second one is 0.37037
Step-by-step explanation:
3V = π r2 h is the volume for r .
What is volume ?
- Each thing in three dimensions takes up some space. The volume of this area is what is being measured. T
- he space occupied within an object's borders in three dimensions is referred to as its volume.
- It is sometimes referred to as the object's capacity.
You must alter the equation using algebraic operations such that it reads
V = 1/3 r2 h.
The second hint is to always operate on the side opposite the equal sign when performing an operation.
Start by multiplying both sides by 3.
3 • V = 3(1/3) π r2 h
We now have a brand-new equation:
Rewrite 3V = 3(1/3) r2 h.
3V = π r2 h
Learn more about volume
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Answer:
Step-by-step explanation:
Hope this helped!
<h3>~AH1807</h3><h3>Peace!</h3>
Answer:48.1897 = 48.2
Step-by-step explanation: cos P= 3.8/5.7
P= cos-1 (3.8/5.7)
P=48.1897 = 48.2