Solve for z: -10z + (z-1)21.875 - [(z-1)5*((2-1)/2)] = 0

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To solve the equation -10z + (z-1)21.875 - [(z-1)5*((2-1)/2)] = 0, it's crucial to simplify and combine like terms correctly. The discussion indicates that the equation may be misinterpreted as quadratic when it is actually linear. Participants emphasize the importance of showing work to identify errors in calculations. The solution proposed, z=2.094, is questioned, suggesting a need for clarity in the solving process. Providing detailed steps will help clarify any misunderstandings in arriving at the correct value for z.
Solidsam
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how do i find z in this problem

-10z+(z-1)21.875-[(z-1)5*((2-1)/2)]=0

i get a quadratic equation but can't seem to get the right answer

z=2.094
 
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Eh? Looks like a linear equation to me.

Anyways, we can't see what you're doing wrong if you don't show your work...
 
Question: A clock's minute hand has length 4 and its hour hand has length 3. What is the distance between the tips at the moment when it is increasing most rapidly?(Putnam Exam Question) Answer: Making assumption that both the hands moves at constant angular velocities, the answer is ## \sqrt{7} .## But don't you think this assumption is somewhat doubtful and wrong?

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