Concept explainers
a.
To calculate: The number of feet descended by submarine per minute.
a.
Answer to Problem 48PPS
The number of feet descended by submarine per minuteis
Explanation of Solution
Given information:
The submarine descended 480 feet in a time span of 20 minutes.
Calculation:
Consider the provided statement that submarine descended 480 feet in a time span of 20 minutes.
So, submarine will descend
That is submarine will descend
Thus, the number of feet descended by submarine per minute is
b.
To describe: The function that represent the number of feet descended by submarine after any number of minutes.
b.
Answer to Problem 48PPS
The function that represent the number of feet descended by submarine after any number of minutesis
Explanation of Solution
Given information:
The submarine descended 480 feet in a time span of 20 minutes.
Calculation:
Consider the provided statement that submarine descended 480 feet in a time span of 20 minutes.
So, submarine will descend
That is submarine will descend
Now, the feet descended by submarine after n number of minutes is
Thus, the function that represent the number of feet descended by submarine after any number of minutes is
c.
To calculate: The number of feet descended by submarine after 5, 10, 15 and 18 minutes.
c.
Answer to Problem 48PPS
The number of feet descended by submarine after 5, 10, 15 and 18 minutes is tabulated below.
Explanation of Solution
Given information:
The submarine descended 480 feet in a time span of 20 minutes.
Calculation:
Consider the provided statement that submarine descended 480 feet in a time span of 20 minutes.
So, submarine will descend
That is submarine will descend
Therefore, the number of feet descended by submarine after 5 minutes is,
Therefore, the number of feet descended by submarine after 10 minutes is,
Therefore, the number of feet descended by submarine after 15 minutes is,
Therefore, the number of feet descended by submarine after 5 minutes is,
Thus, the number of feet descended by submarine 5, 10, 15 and 18 minutes is tabulated below.
Chapter 2 Solutions
Pre-Algebra, Student Edition
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