Concept explainers
a.
To write and solve the equation for the given situation.
a.
Answer to Problem 7CA
Explanation of Solution
Given:
Cost per month for cable TV = $45
Cost of satellite TV receiver = $99
Cost per month for satellite TV = $36
Calculation:
Given that the expenses for a year of satellite TV are less than the expenses for a year of cable.
To find if the expenses are same, Let x be the number of months.
Conclusion:
The amount to be paid is $11.
b.
To check if the given statement is correct.
b.
Answer to Problem 7CA
Yes
Explanation of Solution
Given:
The expenses for a year of satellite TV are less than the expenses for a year of cable.
From subpart (a),
Calculation:
Cost of cable TV for one month = $45
Cost of cable TV for 12 months = $540
Cost of satellite TV for one month = $36
Cost of satellite TV for 12 months = $432
The cost for an year with the cost of receiver = 432 + 99 = $531
Conclusion:
Since the cost of satellite TV is less than the cable TV, the statement is right.
Chapter 1 Solutions
BIG IDEAS MATH Algebra 1: Common Core Student Edition 2015
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