78 / 3 3/4 =
78/1 / 15/4 =
78/1 x 4 /15 = 312/15 = 20.8
20 pieces 3 3/4 inches long can be cut
Answer:
200ft squared
Step-by-step explanation:
4 x 10 x 10 = 400
400 divided by 2 = 200
200 is the answer
The conversion factor between radians and revolution as measures of angle is 2π rad is equal to 1 revolution. Converting the given angular velocity to rev/s,
(2.8 rad) x (1 rev / 6.28 rad) = 70/157 revolution per second
Dividing the given angle, 20 rev by the velocity,
(20 rev) / (70/157 rev/s) = 44 6/7 s
Thus, the answer is approximately 44.9 seconds.
