Accurately weighing pennies I

This problem involves solving a system of algebraic equations from a context: depending how the problem is interpreted, there may be one equation or two. The main work in parts (a) and (b) is in setting up the equation(s) appropriately. Question (c) is more subtle and it requires thinking carefully about the accuracy available in a particular measurement (weight). The first two parts of this task could be used for instructional or assessment purposes while the third part should strictly be implemented for instructional purposes.
Resource ID#: 43567 Type: Problem-Solving Task
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General Information

Subject(s): Mathematics
Grade Level(s): 8, 9, 10, 11, 12
Intended Audience: Educators educators, Students , Parents
Instructional Time: 15 Minute(s)
Keywords: Accurately weighing pennies I, weight, algebraic equations, functions, cpalms, icpalms, illustrativemathematics.org, illustrative mathematics, tasks, mathematics, math, resource, free, freely available, problems-based learning, student activities, Florida Standards, system of equations, equation, rate of change, linear, function, solving a system of equations
Instructional Component Type(s): Problem-Solving Task
Resource Collection: Illustrative Mathematics

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