Concept explainers
(a)
Solve the equation for r.
(a)
Answer to Problem 23PT
Explanation of Solution
Given:
The formula
Concept Used:
To solve the equation for r, just isolate r from the original equation
Calculation:
Equation:
Thus, the equation for r is
(b)
Find the average speed of a car that travels 240 miles in 5 hours?
(b)
Answer to Problem 23PT
Explanation of Solution
Given:
The formula
Concept Used:
To find the average speed of a car that travels 240 miles in 5 hours, plug in the values d = 240 miles and t = 5 hours in the equation:
Calculation:
Equation:
The average speed of a car that travelsis
Thus, the average speed of a car that travelsis
Chapter 2 Solutions
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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