Writing On a certain marathon course, a runner reaches a big hill that is at least 10 miles into the race. If a total marathon is 26.2 miles, how can you find the number of miles the runner still has to go?
To find: The number of miles the runner still has to go.
Answer to Problem 17P
16.2 miles or less.
Explanation of Solution
Given information: On a marathon course, a runner reaches a big hill that is at least 10 miles into the race. Total marathon is 26.2 miles.
Calculation:
A runner reached minimum 10 miles. It means runner reached 10 or more miles. So, he has to reach 26.2-10 =16.2 or less.
Conclusion:
So, a runner has to go 16.2 or less by subtracting 10 from 26.2.
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