4. The cost of a pencil is 25 cents more than the cost of a eraser. If the cost of 8 pencils and 10 erasers is $12.80, find the cost of each.
4. The cost of a pencil is 25 cents more than the cost of a eraser. If the cost of 8 pencils and 10 erasers is $12.80, find the cost of each.
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter28: Degree Of Precision, Greatest Possible Error, Absolute Error, And Relative Error
Section: Chapter Questions
Problem 3A: A machinist's gross income is $875 a week. If the cost of living goes up 3.4%, how much must the...
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Transcribed Image Text:4. The cost of a pencil is 25 cents more than the cost of a eraser. If
the cost of 8 pencils and 10 erasers is $12.80, find the cost of
each.
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