Concept explainers
a.
To define the variables and write an equation in standard form.
a.
Answer to Problem 32PPS
Explanation of Solution
Given:
Cost of bus ride: $1.25
Cost of Train ride: $2.00
Monthly transportation cost: $90
Calculation:
Let x be the number of the bus rides and y be the number of the train rides.
This situation can be modelled as,
Conclusion:
Therefore, the given situation is modelled as
b.
To calculate the number of train rides in the month.
b.
Answer to Problem 32PPS
30
Explanation of Solution
Given:
Cost of bus ride: $1.25
Cost of Train ride: $2.00
Monthly transportation cost: $90
Given that the number of bus rides is 24.
From subpart (a),
Calculation:
Let x be the number of the bus rides and y be the number of the train rides.
Given that the number of bus rides is 24.
Substituting the value in the given equation,
Conclusion:
Therefore, the number of train rides in the month is 30.
Chapter 4 Solutions
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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