How to Calculate Engraving Costs for Pewter Mugs: An Engraving Promotion Guide

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Discussion Overview

The discussion revolves around calculating costs associated with engraving pewter mugs, specifically focusing on developing a piecewise function to model pricing based on the number of engraved letters. Participants also engage in a separate problem related to defining a mathematical function for the outline of the Great Pyramid of Khufu.

Discussion Character

  • Homework-related
  • Mathematical reasoning

Main Points Raised

  • One participant requests assistance in writing a piecewise function for the pricing of pewter mugs, noting that the first six letters are free and each additional letter costs $0.20.
  • Another participant echoes the need for the piecewise function, indicating it is essential for their understanding.
  • A separate participant presents a problem involving the Great Pyramid of Khufu, asking for an absolute value function to represent its outline based on given dimensions.
  • Responses include proposed inequalities to define the pyramid's base and mention that any rotational transformation can serve as a valid answer.
  • Some participants express difficulty in understanding the mathematical concepts and request simpler explanations or clarifications.

Areas of Agreement / Disagreement

There is no consensus on the piecewise function for the mug pricing, as participants are still seeking clarification and assistance. The pyramid outline problem also remains unresolved, with various approaches suggested but no agreement on a single solution.

Contextual Notes

Participants have not fully defined all assumptions or conditions for the piecewise function, and the pyramid problem lacks a specified orientation for the base, which may affect the proposed solutions.

uyenchristine
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We need help on piecewise function...

A gift shop sells pewter mugs for $35. They are currenly running an engraving promotion. The first six letter are free. Each additional letter cost $0.20. Write the piecewise model that gives the price of the mug with x engraved letter..

PLease help we need it immediately...:cry:
 
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How about the piecewise function? That's basically what we need. =)
 
Oh! Thank you!
 
can you help us with another problem,please
 
the largest pyramid included in the first wonder of the world is Khufu. IT stands 450 feet tall and its base is 755 feet long. Imagine that a coordinate plane is placed over side of the pyramid. In the coordinate plane, each unit represent one foot and the origin is at the center of the pyramid base. Write an abolute value function for the outline of the pyramid...please help
 
uyenchristine said:
the largest pyramid included in the first wonder of the world is Khufu. IT stands 450 feet tall and its base is 755 feet long. Imagine that a coordinate plane is placed over side of the pyramid. In the coordinate plane, each unit represent one foot and the origin is at the center of the pyramid base. Write an abolute value function for the outline of the pyramid...please help
In the case you describe, the square base can be defined by the set of two inequalities
\left\{ \begin{gathered}<br /> \left| x \right| = 755/2,\;\left| y \right| \leqslant 755/2 \hfill \\<br /> \left| x \right| \leqslant 755/2,\;\left| y \right| = 755/2 \hfill \\ <br /> \end{gathered} \right\}

Since the problem does not specify an orientation for the base (only that its center be the origin), any rotational transformation (about the origin) on the square described by the two inequalities can serve as an answer.

For example, another possible solution is
\left| {x + y} \right| = \left| {x - y} \right| = 755/\sqrt 2
where \left| x \right|,\left| y \right| \leqslant 755/\sqrt 2
 
Last edited:
oh!
 
could u put into a simplified way?
 
cause we are high school students:wink:
 
  • #10
Which part do you find difficult?
 
  • #11
everything. can you explain to us why it's that answer?
 
  • #12
uyenchristine said:
A gift shop sells pewter mugs for $35. They are currenly running an engraving promotion. The first six letter are free. Each additional letter cost $0.20. Write the piecewise model that gives the price of the mug with x engraved letter..

PLease help we need it immediately...:cry:
Don’t worry about the piece wise function part yet. Figure out a formula that will give you the price of each mug for letters 6 and beyond. Then figure out an equation for letters 5 and less.
 

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