Concept explainers
a.
To write: an equation which describes the given conditions.
a.
Answer to Problem 5P
Explanation of Solution
Given information: a store charges $15 for each movie and charges $1 for each song.
Let the numbers of songs that we can buy be
Then the charges for song is $
And let the number movies that we can buy be
Then the charges for movie is $15
Since we have only $60, then the total charges should be equal to $60.
The required equation is
b.
To find: domain and range of the equation found in part (a).
b.
Answer to Problem 5P
Domain: {60, 45, 30, 15, 0}.
Range: {0, 1, 2, 3, 4}
Explanation of Solution
Given information: an equation is given as follows-
Since the number of movies and songs can be only whole numbers then suitable domain range according to the given equation are-
Domain: {60, 45, 30, 15, 0}.
Range: {0, 1, 2, 3, 4}.
Chapter 5 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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