The circumference of the circle in terms of pi, based on the area of the circle is 6 π.
<h3>How to find the circumference?</h3>
The area of a circle can be found by the formula:
= π x radius x radius
= π x radius ²
If the area of the circle is 9π cm², then the radius is:
= √9π cm²
= 3 π cm
The diameter of a circle is double the radius so the diameter is:
= 3 x 2
= 6 cm
The circumference of a circle is:
= π x diameter
= π x 6
= 6π
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Answer:
$42.20?
Step-by-step explanation:
Hello!
OK, so first we need to see all of our info.
To rent a bike = $17
Each additional hour = $2 per hour
Let "rent a bike" = r
Let "each additional hour" = h
27 = r + 2h
Now to solve.
27 - 17 = 10
10 ÷ 2 = 5
This shows us that she rented the bike for 5 hours.
Check:
27 =? 17 + 2(5)
Solve:
27 = 17 + 10
27 = 27
Yes, we are correct!
Final equation = 27 = r + 2h
Final answer = Ashely rents the bike for 5 hours.
Hope this helped!
.84(25)=21
84%=.84
So 84%of 24 is .84*25