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Concept explainers
a.
To find:The equation in standard form that models the number of moss plants x and thyme plants y that you can buy.
a.
![Check Mark](/static/check-mark.png)
Answer to Problem 48PFA
The equation is
Explanation of Solution
Given:
The cost per Irish moss plant is $5.50 and that per Creeping Thyme plant is $6.
Spend a maximum of $330 for the plants together. Total number of Irish moss plant that can buy is x and that of Thyme plants is y .
Calculation:
And so according to the given data, the equation can be formed as follows
b.
To calculate:Which combinations of plants will not cost exactly $330 (excluding tax).
b.
![Check Mark](/static/check-mark.png)
Answer to Problem 48PFA
B. 8 moss, 62 thyme.
C. 12 moss, 66 thyme.
Explanation of Solution
Given:
Cost per Irish moss plant is $5.50 and that per Creeping Thyme plant is $6.
Calculation:
For
And for
c.
To find:The graph of the equation.
c.
![Check Mark](/static/check-mark.png)
Answer to Problem 48PFA
Graph.
Explanation of Solution
Given:
The equation is given as
Calculation:
So let's plot the graph for the equation
The graph will be as follows:
d.
To identify: Whether equal number of plants can be bought or not.
d.
![Check Mark](/static/check-mark.png)
Answer to Problem 48PFA
No, you cannot buy equal number of plants.
Explanation of Solution
Given:
Equation of the line is
Calculation:
If you buy equal number of plants, then y will be equal to x .
So, let's plug-in
Conclusion:
x is coming out to be a floating point decimal number and number of plants has to be an integer, it cannot be a floating decimal number. And so we can conclude that x and y cannot be equal. And so you cannot buy equal number of plants.
Chapter 4 Solutions
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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