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Flauer [41]
3 years ago
9

At the beginning of a 10-hour experiment,a substance has an initial temperature of 19.7 degrees C. The substance is cooled at a

constant rate of 2.6 degrees C per hour. What is the temperature of the substance at the end of the experiment?
Justify your answer using words and math. Explain.
Mathematics
1 answer:
Olin [163]3 years ago
3 0

Answer:

-6.3

Step-by-step explanation:

2.6 * 10 (10 hours and 2.6 degrees) = 26

19.7 - 26 = -6.3



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slamgirl [31]

Answer:

P   = 6 2/3 ft

Step-by-step explanation:

The formula for the perimeter of a rectangle of length L and width W is

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Here the perimeter is P = 2(1 2/3 + 5/6) = 2(5/2 + 5/6)

                                                                  = 2(15/6 + 5/6) = 2(20/6)

                                                                  = 40/6 = 20/3

                                                              P   = 6 2/3 ft

5 0
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Drupady [299]

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Step-by-step explanation:

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I hope and this helps.

Have a good day.

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