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Tema [17]
4 years ago
6

The temperature of a chemical solution is originally 21, degree, C. A chemist heats the solution at a constant rate, and the tem

perature of the solution is 75, degree, C after 12 minutes of heating.
Mathematics
1 answer:
Svetlanka [38]4 years ago
4 0

Assuming the question is "at what rate did the chemist heat the solution," the answer is the chemist heated the solution at +4.5 degrees Celsius per minute.

75-21=54

54/12=4.5

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Over [174]
\frac{2(5)^2}{5} +5(100-15(5))\\\\  \frac{2*25}{5}+5(100-15(5))\\\\ \frac{50}{5}+5(100-15(5))\\\\ 10+5(100-15(5))\\\\ 10+5(100-75)\\\\ 10+5(25)\\\\ 10+125\\\\ 135\\\\ Final answer: 135\\
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