It would take 110 seconds or a minute and 40 seconds. 400 divided by 50 = 4...... 27.5 multiplied by 4 equals 110; therefore, the answer is mike would swim 400 meters in 110 seconds.
Answer:
Step-by-step explanation:
Base, b = 1/3
Height, h = 12feet = (12x 0.305)metres = 3.66m
Area of triangle= 1/2 bxh
A = 1/2 x 1/3 x 3.66
A = 0.61m^2
Or in feet's
Area of triangle = 1/2 bxh
A = 1/2 x 1/3 x 12 =2 feet^2
The answer is 4x-1 hope it helps. :D
