The circumference of a circle is 50.24 meters. What is the circle's radius?
Use 3.14 for ​

the formula for the circumference of a circle is pi time diameter.

reverse this and do: 50.24/3.14

this is 16.

the diameter of the circle is 16 meters

Answer    

radius 25.12

Step-by-step explanation:

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.