Concept explainers
To find: the price for hardbacks and for paperbacks.
Answer to Problem 37E
Price for hardback = $1
Price for paperbacks = $0.25
Explanation of Solution
Given information:
Cost of 4 hardback books and 7 paperbacks = $5.75
Cost of 3 hardback books and 5 paperbacks = $4.25
Calculation:
Let the price for hardback and paperback books be h and p respectively.
According to the given information, the system of equation will be as follows:
Multiply equation (1) by 3, to get
Multiply equation (2) by
Use elimination method to solve equation (3) and (4) as follows:
Put the value of p in equation (1) and evaluate as follows:
Thus, the price for hardbacks (h) and for paperbacks (p) is $1 and $0.25 respectively.
Chapter 2 Solutions
Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
Additional Math Textbook Solutions
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