Answer:
in
Step-by-step explanation:
The formula to find the area of a circle: , where is the radius.
The formula to find the circumference (perimeter) of a circle: , where is the radius.
1) To find the circumference of the circle, we need to find the radius () first. Since the area of the circle is given to us, we need to equate this to the formula to find the area of a circle.
Cancel the by bringing it to the other side.
÷
2) Find the circumference of the circle by using the formula, .
=
= in
The answer should be $60 per minute
the ratio that is equal to 10:85 is 20:170 because if you multiply both sides by two you get 20:170
Answer:
18.0 (use 18 if 18.0 is not an answer choice)
Step-by-step explanation:
15²+10²=225+100 = 325
√325 = 18.028 or 18.0 (use 18 if 18.0 is not an answer choice)