Multiple Choice
Which of the following correctly expresses the relationship between Celsius (c) and Fahrenheit (f) temperatures?
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3. Matter and Energy
Temperature (Simplified)
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What is 70 degrees Fahrenheit in degrees Celsius?
A
32.2
B
21.1
C
15.6
D
70.0
Verified step by step guidance1
Identify the formula to convert Fahrenheit (\( F \)) to Celsius (\( C \)): \[ C = \frac{5}{9} (F - 32) \] This formula subtracts 32 from the Fahrenheit temperature, then multiplies by \( \frac{5}{9} \) to convert to Celsius.
Substitute the given Fahrenheit temperature (70 degrees) into the formula: \[ C = \frac{5}{9} (70 - 32) \] This means you first calculate the difference \( 70 - 32 \).
Calculate the difference inside the parentheses: \[ 70 - 32 = 38 \] So the formula now becomes \[ C = \frac{5}{9} \times 38 \].
Multiply \( 38 \) by \( \frac{5}{9} \): \[ C = \frac{5 \times 38}{9} \] This step involves multiplying the numerator and then dividing by 9.
Perform the division to find the Celsius temperature. This will give you the temperature in degrees Celsius corresponding to 70 degrees Fahrenheit.
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