if it's zero degrees outside today and it's supposed to be twice as cold tomorrow, how cold is it going to be?

Well, you can be a smart *** about it:

outside temperature is commonly reported in Fahrenheit or in Celsius. Pick the one that is best for you, divide or multiply by 2 and reconvert in the other unit:

0 F = -17.7C

multiply by 2 = -35.4 C --> convert back to F --> -31.72 F

OR

0 C = 32 F

Divide by 2 = 16 F -> convert back to C --> -8.8 C

The 0 x 2 seems a bit too easy to consider. It's getting twice as cold right?

Hope I could be of any help

1. What UNITS are those degrees? Fahrenheit or Celsius?

2. What is meant by "twice as cold"? Do you mean half the absolute temperature? Or do you mean twice as much heat flux is leaving your body?

Hopefully you don't mean half the absolute temperature, where 0 Celsius is 273.15 K, and thus half the absolute temperature is 136.575 K, which is -136.575 C. THAT IS COLD ENOUGH TO FREEZE YOUR SKIN OFF.

Most likely, you mean "twice as much heat flux", because you cannot feel temperature. You can only feel heat flux. This is why you can touch a wooden box and a metal fork and think the metal fork is colder, even though they are both the same temperature.

Grossly assuming that the modes of heat transfer off your skin are linear modes of heat transfer, this means that, heat flow off your body is given by the equation:

Q_dot = (Tbody - T)/R

where R is an assumed constant value called thermal resistance.

So:

Q_dot_today = (Tbody - Ttoday)/R

Q_dot_tomorrow = (Tbody - Ttomorrow)/R

Condition of the problem:

Q_dot_tomorrow = 2*Q_dot_today

Thus:

(Tbody - Ttomorrow)/R = 2*(Tbody - Ttoday)/R

Cancel R:

Tbody - Ttomorrow = 2*(Tbody - Ttoday)

Solve for Ttomorrow:

Ttomorrow = Tbody - 2*(Tbody - Ttoday)

Assuming you meant 0 Celsius, our data is:

Tbody:=37 Celsius <<< standard human body temperature; Ttoday:=0 Celsius;

Result:

Ttomorrow = -37 Celsius

What Degrees Is It Today

I think it'll be roughly -33 degrees F. If you convert Farenheit to Celsius and then multiply that number by two and then change it back to Farenheit you'll get a pretty good estimate of what it'll be. It's not the exact number but pretty close. I hope this helps :).

Well anything multiplied by 0 is zero.

So technically 0 degrees x 2 = 0

hope this helps!

-2°.

lol if we say math o x o =o

but if i say today is colder than yesterday and if my body feels double perhaps -2 c or something around i could feel:)