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## Homework Statement

I know this sounds too easy, but somehow webassign refuses my answers

The temperature difference between the inside and the outside of a home on a cold winter day is 64°F.

(a) Express this difference on the Celsius scale.

160/9

(b) Express this difference on the Kelvin scale.

2617/9

## Homework Equations

C=5(F-32)/9

K=C+273.15

## The Attempt at a Solution

Simply using the equations I got

C=160/9 or 17.7777778

K=2617/9 or 290.77777778

I inputted them three times in three forms, what is wrong with my answers?