Answer:
Diameter of pound = 10 yd
Step-by-step explanation:
Given area of circular pond = 78.5 square yd
To find the diameter of the pond.
Solution:
The pond being circular in shape, the area of pond can be given as:
⇒ 
where 
represents radius of the pond.
Thus, we have:
⇒ 
Using 
⇒ 
Solving for
Dividing both sides by 3.14
⇒ 
⇒ 
Taking square root both sides.
⇒ 
⇒ 
So, radius = 5 yd, as distances are always positive.
Diameter = 
Thus, diameter of pound = 10 yd
You can do this it shouldn’t be as hard as it seems
For this case we have a factorized quadratic equation. We equal each factor to zero and thus find the roots:
Subtracting 5 from both sides we have:
Thus, the first solution of the equation is:
On the other hand we have:
Adding 3 to both sides:
Thus, the second solution of the equation is:
Answer:
The solutions of the equation are:
All you have to do is divide 3 by 2 which is 1.5 so each friend will receive 1 and a half apples
the ratio that is equal to 10:85 is 20:170 because if you multiply both sides by two you get 20:170
