Answer:
53 to be subtracted to make it a perfect square.
Square root of 1936 = 44.
Step-by-step explanation:
Please mark as brainliest
Answer:
205 mins
Step-by-step explanation:
The first pump empties half the pond in 3 hours, so in 1/6 that time (1/2 hour), it empties (1/6)·(1/2) = 1/12 of the pond.
The second pump empties the other 5/12 of the pond in that half hour, so has a pumping rate of (1/2 h)/(5/12 pond) = (6/5 h)/pond.
The second pump could do the entire job alone in 1 hour and 12 minutes.
The circumference of the blue circle is about: 20 cm
The circumference of the orange circle is about: 10 cm
