Concept explainers
Tofind:the total duration stan brother can load the truck alone.
Answer to Problem 12P
Stan’s brother will take
Explanation of Solution
Given:
Stan can load his truck in
If his brother helps him it takes
Concept used:
Rate of the work:
Ratio of work to the time interval with changes in time rate of work will change.
Calculation:
The equation where
Combining like terms and simplifying the fraction:
Subtracting
Dividing both side by
Hence Stan’s brother will take
Chapter 7 Solutions
Algebra: Structure And Method, Book 1
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