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Ed spoke to his cousin in Australia, who told him it was 25°C

that day. Ed wasn’t sure if that was hot or cold, so he converted the temperature to degrees Fahrenheit.

Use the formula F=95C+32
where F is degrees Fahrenheit and C is degrees Celsius. What is the temperature in degrees Fahrenheit?

NOTE: Enter the number of degrees Fahrenheit in the box in order for this problem to be scored correctly.

1 answer

To convert 25°C to degrees Fahrenheit using the formula \( F = \frac{9}{5}C + 32 \), we will substitute \( C \) with 25.

  1. Substitute \( C \): \[ F = \frac{9}{5}(25) + 32 \]

  2. Calculate \( \frac{9}{5} \times 25 \): \[ \frac{9}{5} \times 25 = 9 \times 5 = 45 \]

  3. Now add 32: \[ F = 45 + 32 = 77 \]

Thus, the temperature in degrees Fahrenheit is \( \boxed{77} \).