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Convert 45•F to Celsius
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Convert 45•F to Celsius

Convert 45•F to Celsius-example-1
User Miguel Hermoso
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2 Answers

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F=(9)/(5)C+32\\\\\text{substitute F=45}\\\\(9)/(5)C+32=45\ \ \ \ |-32\\\\(9)/(5)C=13\ \ \ \ |\cdot5\\\\9C=65\ \ \ \ |:9\\\\C=(65)/(9)\\\\C=7.2222....\\\\C\approx7\\\\\text{Answer:}\ 45^oF\approx7^oC\to B.
User Damian Piwowarski
by
5.6k points
1 vote
(F - 32)9 = C/5

(45 - 32) / 9 = C/5
9C = 5*13
C = 65/9 = 7.2 degrees C to nearest tenth.
User Mslowiak
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