Mercedes rode her skateboard at a speed of 20 miles per hour. Which statement is correct? * If she covered 4 miles, she rode for 5 hours.
If she covered 40 miles, she rode for 2 hours.
If she covered 10 miles, she rode for 0.25 hours.
If she covered 4 miles, she rode for .15 hours

Step-by-step explanation:

number 1    

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi