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Home Q & A Board Science-Related Homework Help Mathematics
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majarm majarm
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5 years ago
An electrician charges a flat fee of $90 for a home service call. In addition he charges $25 for every 20 minutes as labour cost. Draw a graph to show the total charge against the time in hours. Calculate the slope of the line.
Textbook 
Contemporary Business Mathematics with Canadian Applications

Contemporary Business Mathematics with Canadian Applications


Edition: 11th
Authors:
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josanjosan
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5 years ago
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More solutions for this book are available here
Fixed cost = $90 (FC)
Variable cost = $25 for every 20 minutes = $75 per hour (TVC)
Total cost = TC = TVC + FC
TC = $75t + $90
∴ Slope of the line = 75

Following is the graph:
1

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majarm Author
wrote...

5 years ago
this is exactly what I needed
mikey3091
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Yesterday
Good timing, thanks!
Holly72492
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2 hours ago
Helped a lot
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