Concept explainers
To find:the equation of gift card purchased and spent is written in standard form and also find the three combinations of gift cards purchased.
Answer to Problem 5LC
The relationship equation of gift card purchased and spent is
The three combinations of gift card purchased is given as
Explanation of Solution
Given info:
The price of the gift card is either $10 or $25.
Consider the number of $10 gift card is
Consider the number of $25 gift card is
The amount spent for buying gift card is $285.
Formula used:
Show the standard form of equation as follows:
Here,
Calculation:
Find the relationship equation of gift card purchased and spent as follows:
Hence, the equation in standard form is
Find the
Consider the number of $10 card purchasedis
Hence, the first combination is
Consider the number of $20 card purchased is
Hence, the second combination is
Consider any value of
Hence, the third combination is
Conclusion:
Thus, the relationship equation of gift card purchased and spent is
Thus, the three combinations of gift card purchased is given as
Chapter 5 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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