Concept explainers
a.
To calculate: The number of months for which the membership will cost the same.
a.
Answer to Problem 17MCQ
The required number of months for which the membership costs will be same is 15 months.
Explanation of Solution
Given information:
Gym cost for the membership of Alpine rock-climbing = $25
Cost of sign-up fee = $125
Gym cost for membership of Rocco’s rock-climbing = $30
Cost of sign-up fee = $50
Calculation:
For Alpine gym,
For Rocco’s gym,
Hence, the required number of months for which the membership costs will be same is 15 months.
b.
To find: The gym which should be joined for only one-year membership.
b.
Answer to Problem 17MCQ
The gym which should be joined for only one-year membership is Rocco’s gym.
Explanation of Solution
Given information:
Gym cost for the membership of Alpine rock-climbing = $25
Cost of sign-up fee = $125
Gym cost for membership of Rocco’s rock-climbing = $30
Cost of sign-up fee = $50
Calculation:
For Alpine gym,
For Rocco’s gym,
It is seen that for an one-year membership, the cost of Rocco’s gym is less than that of Alpine gym.
Hence, the gym which should be joined for only one-year membership is Rocco’s gym.
Chapter 2 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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