Concept explainers
a.
To calculate the cost that music club charges to download a song.
a.
Answer to Problem 21PPS
$2.43
Explanation of Solution
Given:
Kendrick pays $14.90 to download 5 individual songs and 1 album.
Geoffrey pays $12.75 to download 3 individual songs and 2 albums.
Calculation:
Let x be the cost of downloading an individual song and y be the cost of downloading an album.
Given that Kendrick pays $14.90 to download 5 individual songs and 1 album.
Also, Geoffrey pays $12.75 to download 3 individual songs and 2 albums.
Multiply equation (1) with 2,
Subtract equation (2) from equation (3), so that y is eliminated.
Conclusion:
Therefore, the cost of downloading a song is $2.43.
b.
To calculate the cost that music club charges to download an entire album
b.
Answer to Problem 21PPS
$2.75
Explanation of Solution
Given:
From subpart (a), x = 2.43
Calculation:
Substitute the value of x in any one of the equations,
Conclusion:
Therefore, the cost of downloading an album is $2.75.
Chapter 6 Solutions
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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