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An arbitrary thermometer has fundamental interval of -20 and 70. Convert 10°c to its value...

An arbitrary thermometer has fundamental interval of -20 and 70. Convert 10°c to its value in the arbitrary temperature scale?

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Answers (2)

Robert
1 month ago
100°C................70

10°C..................y

0°C....................-20


(100 - 0)/(10 - 0) = (70 + 20)/(y + 20)
100/10 = 90/(y + 20)
10= 90/(y + 20)
y + 20= 9
y= -11

Thus, the arbitrary value for 10°C is -11.
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