Math Problem Statement

Among Great-Grand-Ma's papers, an old, worn out bill was found. The bill stated

"... 67.9... dollars for 72 turkeys".

The first and the last digits of the dollar amount had left only faint shadows and were not legible anymore. (Each of the missing digits is represented, here, above, with three dots (...))

Assume that each of the 72 turkeys costed the same amount of money (in dollars and cents).

Determine the price of one turkey at the time Great-Grand-Ma purchased the birds.

What must the first digit (the number of hundreds of dollars) be in ... 67.9...?

What must the last digit (the number of hundreds of dollars) be in... 67.9...?

Short resume and tables

Solution

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Math Problem Analysis

Mathematical Concepts

Algebra
Division
Estimation

Formulas

Price per turkey = Total cost / Number of turkeys
Total cost = a67.9b

Theorems

Divisibility rule
Rounding

Suitable Grade Level

Grades 6-8