162°F convert to °C with solution

Question

I'm really confused about what my professor taught us about this.

Answer 1

C=(5/9)(F-32)

C=(5/9)(162-32)

C=(5/9)(130)

C=(650/9)

C=72.222...º or 72 2/9 º

Answer 2

To convert from Fahrenheit to Celcius, use the formula

 

C = (F - 32) • 5/9

 

    Where C = Celcius degrees

               F = Fahrenheit degrees

 

 

C = (162 - 32) • 5/9

   = 130•5/9

   = 650/9

   = 72.22

Answer 3

Good morning, Lee.

 

There is a formula you can memorize, but I think your prof wants you to work it out as proportions.

 

Since water boils at 212 deg F and it boils at 100 deg C,  and we want to know what 162 deg F is in deg C....   Can set up this proportion

 

162 = x

------    ---

212   100

 

Notice the ratio on the left is all deg F, while the ratio on the right is all deg C.

 

If you cross multiply, we get.  

 

(162)(100)=(212)(x)

 

Divide both sides by 212

 

(162)(100)/212 = x =76.415 deg C

 

Answer is 76.4 deg C