1/3 you can use two formulas but I recommend rise over run
The answer would be 8900
Reason: when you round to 2 significant figures you are trying to reduce the number to 2 digits and the rest will become 0 to indicate a place value
The rotation of the gears in he mesh involves a circular motion
The second gear has 2 teeth
<h3>How to determine the number of teeth?</h3>
The given parameter can be represented using the following ratio:
Ratio = Teeth : Revolution
So, we have:
23 : 60 = Teeth : 5
Express as fraction
23/60 = Teeth/5
Multiply both sides by 5
Teeth = 5*23/60
Evaluate the product
Teeth = 2
Hence, the second gear has 2 teeth
Read more about rotation at:
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Answer:
24 hours
Step-by-step explanation:
The computation of the number of hours taken by Bobby to build the robot by himself is shown below:
Given that
Bobby could take 12 hours
Together they could build in 8 hours
So based on the above information
the number of hours taken by Bobby to build the robot by himself is
Let us assume the above line be x
So,

x = 24 hours