
Concept explainers
1.
To find: An equation to calculate time and the time taken to print the black and white document.
1.

Answer to Problem 7E
The equation is
Explanation of Solution
Given information: Inkjet printer print black and white document in
Calculation:
To evaluate time taken to print black and white document it is needed to divide the total pages in black and white document from the rate of printing
Therefore, the equation obtained as:
Hence,
The equation is
2.
To find: An equation to calculate time and the time taken to print the color document.
2.

Answer to Problem 7E
The equation is
Explanation of Solution
Given information: Inkjet printer print black and white document in
Calculation:
To evaluate time taken to print color document it is needed to divide the total pages in color document from the rate of printing
Therefore, the equation is obtained as:
Hence,
The equation is
3.
To find: Total time to print both documents
3.

Answer to Problem 7E
Total time to print both documents is
Explanation of Solution
Given information:
Inkjet printer print black and white document in
Calculation:
To evaluate total time in print of both documents add the time taken to print black and white documents with time taken to print color documents
Therefore,
Hence,
Total time to print both documents is
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