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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.
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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 2011 Algebra 1 Student Companion Grade 8/9
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