Concept explainers
(a)
Write an equation to find the price for each bar for the Fell Great brand.
(a)
Answer to Problem 41MR
Explanation of Solution
Given:
Feel Great energy for 12 bars −
Super power energy for 15 bars −
Concept Used:
The cost of Feel Great energy for 12 bars −
The price for each bar for the Fell Great brand is the quotient of the total cost and the number of bars.
Total cost =
The price for each bar for the Fell Great brand =
Let the price of each bar for the Fell Great brand =
Equation:
Calculation:
Equation:
Thus, the equation for the price of each bar for the Fell Great brand is Equation:
(b)
Write an equation to find the price of each bar for the Super Power brand.
(b)
Answer to Problem 41MR
Explanation of Solution
Given:
Feel great energy for 12 bars −
Super power energy for 15 bars −
Concept Used:
The cost of Super power energy for 15 bars −
The price for each bar for the Super power energy is the quotient of the total cost and the number of bars.
Total cost =
The price for each bar for the Super power energy =
Let the price of each bar for the Fell Great brand =
Equation:
Calculation:
Equation:
Thus, the price for each bar for the Super power energy is
(c)
Which bar should Adelina buy? Explain.
(c)
Answer to Problem 41MR
Super Power energy bar
Explanation of Solution
Given:
Feel great energy for 12 bars −
Super power energy for 15 bars −
Concept Used:
According to the chart given in the question, the cost of each bar is:
The price of each bar for the Fell Great brand is Equation:
The price for each bar for the Super power energy is
Calculation:
The price of each bar for the Fell Great brand is Equation:
The price of each bar for the Fell Great brand is $1.50
The price for each bar for the Super power energy is
The price of each bar for the Super power energy is $1.45
The price of each bar for the Fell Great brand is costly.
Adelina should buy the Super Power energy bar as it is less costly than the price of Fell Great Brand.
Thus, Adelina should buy the Super Power energy bar.
Chapter 1 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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