
Concept explainers
The hours that you and your friend each drive in 1 day.

Answer to Problem 36E
You spend 4 hours driving & your friend spend 10 hours
Explanation of Solution
Given information:
On a road trip with the friend, the drive is about 70 miles per second and your friend drives 60 miles per second. The plan is to drive less than 15 hours and at least 600 miles each day.
Formula used:
The graph represents x axis which is horizontal axis and y represents vertical axis.
Calculation:
Let:
Set up the inequalities:
Drive less than 15 hours
At least 600 miles a day
Your friend drives more hours
Graph the equations:
Restrict the graph to positive x & y values since negative values do not make sense in this real- life context
The solution is the intersection (yellow shaded area):
A possible solution is:
(4, 10)
Conclusion:
You spend 4 hours driving & your friend spend 10 hours
Chapter 5 Solutions
BIG IDEAS MATH Algebra 1: Common Core Student Edition 2015
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