Concept explainers
Find nearest hundredth, by now how many miles she should increase her daily run to meet her goal.
Answer to Problem 49IP
4.73 miles
Explanation of Solution
Given:
A good rule to know when training for a marathon is that you will generally have enough endurance to finish a race that is 3 times your average daily distance. Tammy wants to be able to run at least the standard marathon distance of 26.2 miles. The length of her current daily run is about 4 miles. To the nearest hundredth, by how many miles should she increase her daily run to meet her goal?
Concept Used:
Let d be represents the daily miles she should increase her daily.
The length of her current daily run is about 4 miles. After the increase of d miles it would be (4+ d ) miles.
The required inequality:
Calculation:
The required inequality:
Solve for d :
Thus, she has to increase her daily run by 4.73 miles.
Chapter 8 Solutions
Glencoe Math Accelerated, Student Edition
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