(Refer to Example 1.) Convert the Celsius temperature to an equivalent Fahrenheit temperature.
0° C
EXAMPLE 1 Converting temperature scales
In the United States, temperature is measured with either the Fahrenheit or the Celsius temperature scale. To convert Fahrenheit degrees F to Celsius degrees C, the formula can be used.
(a) Solve the formula for F to find a formula that converts Celsius degrees to Fahrenheit degrees.
(b) If the outside temperature is 20°C, find the equivalent Fahrenheit temperature.
Solution
(a) The reciprocal of is , so multiply each side by .
The required formula is .
(b) If C = 20°C, then .
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