Concept explainers
a.
To write: An equation to find the fastest and slowest times.
a.
Answer to Problem 43PPS
The required equation is
Explanation of Solution
Given information:
The
A runner runs the first the first leg in 52 seconds plus or minus 2 seconds.
Calculation:
Let the time taken by the runner be “x”
The fastest time will be
Or
The slowest time will be
Therefore, the required equation can be written as:
b.
To write: An equation to find the fastest and slowest time.
b.
Answer to Problem 43PPS
The required equation is
Explanation of Solution
Given information:
The
The runners of the second and third legs run their laps in 53 seconds plus or minus 1 second.
Calculation:
Let the time taken by the runners be “x”
The fastest time will be
Or
The slowest time will be
Or
Therefore, the required equation can be written as:
c.
To find: The team’s fastest and slowest time.
c.
Answer to Problem 43PPS
The required answer is 203 and 214 seconds.
Explanation of Solution
Given information:
The
The runner of the fourth leg is the fastest on the team. He runs an average of 50.5 seconds plus or minus 1.5 seconds.
Calculation:
Let the time taken by the fourth runner be “x”
The fastest time will be
The slowest time will be
Therefore the team’s fastest time will be
(Adding the fastest time of all the four runners)
(Simplify)
The team’s slowest time will be
(Adding the slowest time of all the four runners)
(Simplify)
So, the team’s fastest and slowest times are 203 and 214.
Chapter 2 Solutions
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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