Mathematics, 24.07.2019 02:30 yakshp3702
When a cold drink is taken from a refrigerator, its temperature is 5 degrees c. after 25 minutes in a 20 degrees c room its temperature has increased to 10 degrees c. (a) what is the temperature of the drink after 50 minutes? (b) when will its temperature by 15 degrees c?
Answers: 1
, we have 
(
is 20 degrees). Letting 
, we get 
, so 
. 
, so 
, and 
so 
. Thus, 
and 
, so 
. More simply, 
= 
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When a cold drink is taken from a refrigerator, its temperature is 5 degrees c. after 25 minutes in...
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