The cost of hiring a chainsaw is 10$ plus an amount that is proportional to the square of the number of hours for which the chainsaw is hired. If it costs $32.50 to hire the chainsaw for 3 hours, find to the nearest half hour, the length of time for which the chainsaw was hired if the cost of hire was $60.

asked by Aana

6 years ago

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1 answer

c=10+kh^2
Now you know that
10+9k=32.50
...

answered by Steve

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Question

The cost of hiring a chainsaw is 10$ plus an amount that is proportional to the square of the number of hours for which the chainsaw is hired. If it costs $32.50 to hire the chainsaw for 3 hours, find to the nearest half hour, the length of time for which the chainsaw was hired if the cost of hire was $60.

1 answer

c=10+kh^2
Now you know that
10+9k=32.50
...

Ask a New Question or answer this question.

Steve · Answer

c=10+kh^2 Now you know that 10+9k=32.50 ...