The Celsius to Fahrenheit formula: F = 9/5C + 32

Solve this formula for C. Check all answers that are true.

(4 points)

A. The Celsius to Fahrenheit formula: F=95C+32

Solve this formula for C. Check all answers that are true.

(4 points)
Responses

First step is to multiply by 9 on each side.
First step is to multiply by 9 on each side.

First step is to add 32 to both sides.
First step is to add 32 to both sides.

The next step from F - 32 = 9/5 C, could be to multiply both sides by 5
The next step from F - 32 = 9/5 C, could be to multiply both sides by 5

The next step from F - 32 = 9/5 C, could be to divide both sides by 5
The next step from F - 32 = 9/5 C, could be to divide both sides by 5

Solution: 5/9F - 32 = C
Solution: 5/9F - 32 = C

To solve this equation for C, you would have to distribute at some point.

First step is to add 32 to both sides.

The next step from F - 32 = 9/5 C, could be to multiply both sides by 5

The next step from F - 32 = 9/5 C, could be to divide both sides by 5

Solution: 5/9F - 32 = C

To solve this equation for C, you would have to distribute at some point.

1 answer

To solve the Celsius to Fahrenheit formula \( F = \frac{9}{5}C + 32 \) for \( C \), let's go through the steps.

  1. Start with the original equation:
    \( F = \frac{9}{5}C + 32 \)

  2. Subtract 32 from both sides:
    \( F - 32 = \frac{9}{5}C \)

  3. Multiply both sides by \( \frac{5}{9} \) to isolate \( C \):
    \( C = \frac{5}{9}(F - 32) \)

Which can also be written as:
\( C = \frac{5}{9}F - \frac{160}{9} \)

However, the expression \( C = \frac{5}{9}(F - 32) \) is the more common form to represent it.

Checking the Given Responses

  1. First step is to multiply by 9 on each side.
    False - The first step involves subtracting 32, not multiplying.

  2. First step is to add 32 to both sides.
    False - You need to subtract 32 from both sides, not add.

  3. The next step from \( F - 32 = \frac{9}{5} C \), could be to multiply both sides by 5.
    False - The next step should be to multiply both sides by \( \frac{5}{9} \), not just 5.

  4. The next step from \( F - 32 = \frac{9}{5}C \), could be to divide both sides by 5.
    False - Dividing both sides by 5 does not isolate \( C \).

  5. Solution: \( \frac{5}{9}F - 32 = C \)
    False - This is not correct because it has \( -32 \) on the wrong side.

  6. To solve this equation for C, you would have to distribute at some point.
    False - The distribution is not necessary. You are simply calculating \( \frac{5}{9}(F - 32) \).

Correct Solution

In summary, the correct answer (however not one of the provided options) should be:
Solution: \( C = \frac{5}{9}(F - 32) \)

None of the provided statements are true based on the correct steps needed to solve the equation.