Ruby is visiting a wildlife center to gather information for her term paper. The center has a circular pond with a diameter of 2
2 answers:
Answer:
Area of pond = 314 meter².
Step-by-step explanation:
Given : The center has a circular pond with a diameter of 20 meters.
To find : What is the approximate area of the pond.
Solution: We have given diameter = 20 meters.
Radius = .
Radius = .
Radius = 10 meter .
Area of circular pond = pi ( radius) ².
Area of pond = 3.14 (10) ².
Area of pond = 3.14 * 100.
Area of pond = 314 meter².
Therefore, Area of pond = 314 meter².
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Answer:
Total 25.45 hours will be taken to empty the pool.
Step-by-step explanation:
Time taken by large pumpkin to empty the pool=40 hours
Time taken by the smaller pumpkins to empty the pool=70 hours
Amount of pool emptied by large pumpkin in one hour=
Amount of pool emptied by small pumpkin in one hour=
Amount of pool emptied in one hour if both pumpkins work together=
+
=
Therefore, the no. of days will be the reciprocal of the amount of work done in one hour ie .
Total 25.45 hours will be taken to empty the pool.