Concept explainers
a.
The equation in standard form
a.
Answer to Problem 55PFA
Explanation of Solution
Given:
The total value of money is $2.25
Calculation:
Let x be the number of nickels and y be the number of dimes.
The value of one nickel is 0.05 and the value of one dime is 0.10
The equation in standard form is
Conclusion:
Therefore, the equation in standard form is
b.
To graph: the equation
b.
Explanation of Solution
Given:
Calculation for graph:
Substitute random values of x to find y .
x | -2 | -1 | 0 | 1 | 2 |
y | 23.5 | 23 | 22.5 | 22 | 21.5 |
Graph:
Interpretation:
The graph of given equation is plotted above.
c.
The number of dimes
c.
Answer to Problem 55PFA
10
Explanation of Solution
Given:
Number of nickels = 25
From subpart (a),
Calculation:
Substitute the value of x in the equation found in subpart (a).
Conclusion:
Therefore, the number of dimes in 10.
Chapter 4 Solutions
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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