
Concept explainers
To find: when the costs are equal and also to find whether that the expenses for a year of satellite TV is less than the expenses for a year of cable or not.

Answer to Problem 7CA
The costs are equalafter 11 months and also the expenses for a year of satellite TV is less than the expenses for a year of cable.
Explanation of Solution
Given:
45$ per month for a cable TV
The cost of satellite receiver is 99$ and monthly pay is 36$
Calculation:
To find when the costs are equal is calculated below
Let x= number of months
The costs are equalafter 11 months.
And after 12 months, the cable TV costs $540 whereas the Satellite TV costs $531.
Thus,the expenses for a year of satellite TV is less than the expenses for a year of cable.
Conclusion:
Therefore, the costs are equalafter 11 months and also the expenses for a year of satellite TV is less than the expenses for a year of cable.
Chapter 1 Solutions
BIG IDEAS MATH Integrated Math 1: Student Edition 2016
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