
Concept explainers
To calculate the number of hours Bruins basketball team spent driving on local highways.
Bruins basketball team spent
Given:
Total distance of trip =
Speed on local highways =
Speed on interstate highways =
Number of hours spent more on the interstate highways than local highways =
Formula used: Average speed of the team is determined by calculating the ratio of distance travelled to time taken to cover this distance, i.e.
Calculation:
Let the time spent on local highways =
Let the time spent on interstate highways =
Let the average speed on local highways =
Let the average speed on interstate highways =
Let total distance =
Let the distance of local highways =
Let the distance of interstate highways =
Now, from the given information, we have:
Now, the average speed on local highways is given by:
And, the total distance travelled is given by:
And, the average speed on interstate highways is given by:
From equation (1), we have:
Substituting the value of
Hence, Bruins basketball team spent
Chapter 1 Solutions
EBK PRECALCULUS:GRAPHICAL,...-NASTA ED.
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